

Last updated: 1JAN00
"I have a 1984 CJ7, with a 258. After reading some
of your answers. I'm starting to get concerned. I bought a cj7 few months
ago and with a 3 inch body lift. The tub is shot, so I found an old tub to
replace. While I am at it, I am planning to throw away 3 the body lift and
replace with Energy Suspension body mount kit. I know that I'm to change
the clutch rod, but am I to change anything else? From the way it looks, it
looks like I've got to shorten the steering system? Anything
else?"
How difficult the removal of the body lift is will depend on how well it was
installed in the first place. If the steering shaft was lengthened for the
body lift, then you'll need to either replace it with a stock unit (next to
nothing at a junkyard) or shorten the one you have. If the radiator and fan
shroud were lowered, they will need to raised back to their original
position. You are already aware of the clutch linkage issue. All in all, the
body lift should be easily removed in a day's work.

"I have a 1988 YJ, with a 99' 4.0/5spd 3000KM. What
I was looking to do is add a BDS 3.5" lift and 4 Revolver shackles. Now I've
gathered some info on this project, but I'm not too sure what I'm going to need to get
done to maximize the performance of this setup.
The only common detail I can find is extended brake lines. But other than that
everyone seems to have their own ideas of what I'll need. In final...the main thing
to me is that it's done right...the first time (unlike the 3wk engine swap!)"
You will certainly need extended brake lines. You will also need a "dropped"
steering arm to lower the drag link angle. I would also strongly recommend
converting your transfer case to a short style fixed yoke and using a CV
style driveshaft. This should prevent the need to lower the transfer case
and reduce ground clearance, as well as cure any potential driveshaft
vibration problems. Since you are using the Revolver shackles, I would not
buy shocks until the springs and shackles were installed and measurements
could be taken. The Revolver shackles will provide much more wheel travel
than the designers of the kit could have predicted with their springs.

"I have a 1993 Jeep Cherokee Sport with a straight-six.
I want to get a suspension lift and new tires. A 3" lift is the max I want. What
would be the most affordable yet durable system for me to get? Should I go to a
Jeep dealer to have it installed since there is not a 4x4 shop in my area?"
Just about every manufacturer produces a 3" kit for the Cherokee with little
difference between them (the exception being the expensive kit from Old
Man Emu). We are currently running the Rancho 3" kit on our Project '94 XJ
and overall we are satisfied with it.
Nearly all Jeep dealers will refuse to install a suspension lift for you. If
it's not a factory part, they don't want to have anything to do with it.
Many smaller shops will install lift kits, even if they are not necessarily
"4x4" shops. My advice would be to open up the phone book and start making
some phone calls. You might also consider installing the kit yourself. Lifts
of 3" or less on a Cherokee are really very easy to install and you can
pocket the installation costs.

"I have a 1999 Cherokee, with a 4.0L Auto. I am
looking to buy a 4.5" lift kit for my XJ. This is my daily driver so I
still need a factory or better ride. I am wondering in addition to the lift
itself what else would I need. I am looking at Rubicon Express's 4.5" lift.
I want to run 32 x 10.5" tires. Can I do this on my stock rims? Would I
need a new driveshaft for both axles? What about an X-Case drop? Slip yolk
elimator? The kit I am looking at comes with a new track bar. Would I need
a new longer pitman arm. I am new to off-roading but I want a nice lift
while still keeping a good ride. Its this possibls. Thank you for any
help!"
Call Rubicon Express and ask them what they'd recommend when installing
their kit. They will know what works and what doesn't with their product.
With that said, I would think a slip yoke eliminator kit would be mandatory.
Installation of the eliminator kit would require a new rear driveshaft. The
existing front shaft will probably be OK. With the new track bar, you will
not need a dropped steering arm. With the track bar and drag link at the
same angle, bumpsteer is eliminated.
10.5" wide tires will work on stock rims with some minor rubbing of the
control arms in a sharp turn.
As for the ride quality, I don't believe any 4.5" kit will ride or handle
close to stock. That may or may not be a bad thing depending on the ride you
prefer. I can guarantee that the 4.5" lift will be at least a little stiffer
than stock. It's just a trade you will have to make to run that much lift.

"I have a 1991 XJ compact Cherokee, with a
4.0/auto. I recently bought my Jeep Cherokee and unfortunantly it is not
4WD. The other day a guy at a tire place asked me if I wanted his almost
new (2 months old) tires and rims from his TJ. Of coarse I said yes, I
mean WHO WOULDN'T? The tires he put on were 30x9.5 Michilen XC LT4's. They
looked like they fit perfect but of coarse as i drove it down the road the
back wheel'srubbed if i hit a bump. I went every were tring to figure out
how to make more room in my wheel wells. Finally I went to one off road
center and they said not to waste the money putting a lift kit on since it
wasn't 4WD. They said get rid of the tires and put smaller ones on. So I
ended up doing that after much deliberation. I moved down to a considerably
smaller tire (p235/70 R15). Now I figured that this was going to be much
better. I was wrong, later that evening I was driving it with two other
people in the Jeep and when we hit a big bump it would rub hard. So I ended up
removing an inner peice from the outer fender that stoped the rubbing noise temporarily
but I can't go down any rough roads or even go down the highway without it getting the tire
dangerously close to the body. What do you recommend for this kind of
problem? and its to late to take those tires back. I was thinking of
putting adjustable air shocks in the back, do you think that would work for
just a small amount more of clearence? I some what think that the leaf
springs in the back sag a little do you think this might be the cause of my
problem? The front is just fine and gets an exceptiopnal amount of
clearence (I have recently replaced all of the shocks).Thank you very
much if you read this. You don't Know how much I need an answer on this
complication of mine."
You have a couple of options. You could purchase a complete lift kit and
reinstall the 30" tires. The counterman at your local parts store may not
think it's needed, but hey, you're the guy with the tire rub. If you want to
keep your existing tires, you could simply install a 50 dollar add-a-leaf
kit in the rear springs to increase the ride height by an inch or so. You'll
also need to buy longer leaf spring center bolts to compensate for the added
width of the spring pack. The add-a-leaf kit will increase the spring rate
and will ride a little stiffer than before. If you want to keep the spring
rate the same and just get more clearance you could install a 1" lift block
between the leaf spring and the axle, just be sure to purchase longer
U-bolts.

"I have a 1999 Cherokee, with a 4.0L / Power Tech
I-6 / 4 speed Auto. I recently bought a 1999 Cherokee Limited with the Up Country
suspension group and trailer tow group (I've owned 2 other Cherokees in past years,
never driven anything else). I would like to put larger tires (30" or preferably 31").
The Jeep is currently stock with 15x7.0 wheels and P225/75R15 Wrangler RT/S AT tires.
What kind of mods do I need (lift and/or wheels)? Can you suggest a high quality kit
(if required) and tire? The tire size is more for show than for off roading since the stock
configuration currently meets my off road needs. An additional concern is with respect
to highway performance. Will the larger tire size significantly compromise or affect
handling characteristics at highway speeds and will such mods cause increased wear and
tear on the vehicle in general? What effect does this have on gas mileage?"
To run a 30" tire on a Cherokee, you'll need a 2" suspension lift. For a 31"
tire, you'll need a 3" lift. We've used both on our Project 1994 Cherokee and
you can read the reviews of the kits at article2.htm
and articleo.htm.
I personally like BFGoodrich All Terrain tires for a daily driver that
occasionally sees some dirt. They make a great all around compromise.
Increasing the tire size will affect the performance of your Cherokee on the
highway. Basically, you'll feel like you have less power. To minimize this,
I'd suggest sticking to the 30" tall tire. With 31" tires on our XJ, we've
found it necessary to install lower gears in the axles. I've found the
increased tire size has had no effect on mileage in town, and a slight drop
on the highway.

"I have a 1990 YJ, with a 4.2L/5SPD. I would
like to know your feelings about the Warn coil-conversion kits. Just
how big of a job is this? I am wondering if I should start looking for a later
model Wrangler to get away from the leaf springs."
My understanding is that it's a huge job, at least when compared to
installing your typical off the shelf leaf spring lift. There is a
considerable amount of welding to be done on both axles to install the new
bracketry, any mistakes here could become very expensive. Your entire
exhaust system will also need to be redone as it will interfere with the
conversion. I think it's safe to say that 99% of the people who purchase
this kit should have it installed by a professional. However, once
accomplished you'll have a suspension system considerably better than the TJ
design. Whether to invest the money in a suspension system or put it toward
a new TJ is up to you.

"I have a 1995 Jeep YJ, with a 4.0 HO. I have been
considering a lift kit for my Jeep. A little background on how I use it.
I drive 60 miles a day for work and drive about 70-80MPH on the highway. I am
interested in about a 4" lift with 33" BFG AT tires and 15" X 10" wheels. I have heard
that superlift makes a kit that is smooth, also from another store they said that using
a procomp kit with rancho rs9000 shocks will give me a smooth ride. Also I have heard
different stories about rear driveshafts. What is the best bet for me to do. Do I
need a longer driveshaft, and what kind of ride should I experience. I am open to any
suggestions on brands that you recommend. Thanx."
The Superlift kit is pretty smooth when used with RS9000 shocks. I don't
have any experience with the ProComp lifts so I cannot comment there. If
you're ultimate concern is ride quality for your commute, I'd suggest using
an Old Man Emu suspension system including their shocks. It's more
expensive, but it's been my experience that the cost difference is well
worth the money in terms of ride quality and off road performance.
Driveshaft modifications will not be required with any of these lifts.
Transfer case lowering brackets coupled with axle shims (all of which should
be included with the kits) will eliminate any need for modification. Just as
a word of warning, with your desired tire size your 70-80 mph highway
travels are going to be done in 4th gear, 5th will be almost useless. You
will need to consider a gear ratio swap to offset the increase in tire
diameter. You may be able to find a shop that may cut you a discount for
performing all of this work at once, shop around.

"I have a 1990 Wrangler YJ, with a 258 cu in/manual.
I was wondering at what height you can raise your Jeep before you need to
change your pitman arm? For a 4in. lift you need to change it to the 4in.
arm, but what about a 3in. lift. Wouldn't a 1-inch difference one way be
better than a 3-inch difference the other way. Please help the dazed and
confused, thanks!"
The purpose of the pitman arm is to lower the angle of the drag link to the
axle/tie rod. In stock form, they are at or near parallel and no bump steer
occurs. When the suspension is lifted even as little as an inch, the angle
of the drag link increases. This angle from the pitman arm to the axle
causes bump steer. Bump steer is noticeable in lifts as small as two inches
but just isn't severe enough for anyone to make a slightly dropped pitman
arm for it. With lift heights of 3-4 inches, bump steer becomes dangerous
and a dropped pitman arm is mandatory for safe driving. Every major
manufacturer that makes a lift kit in this height range recommends or
includes a dropped pitman arm with their kits.

"I have a 1978 CJ5, with a 304V8/Manual. Grant,I am
doing a 'spring over' on my CJ5 and must replace the current factory
springs. I am looking for new springs no more than 1" over stock height,
very strong but not stiff, articulation is important, what aftermarket
spring do you recommend using?"
Since you obviously don't mind a little fabricating, go with a set of YJ
Wrangler springs. They are much softer and will flex much better than the CJ
springs. For example, the Rancho #44091 1" lift front spring for your CJ
has a spring rate of 300 lbs per inch. A Rancho #44047 1.5" YJ front spring
has a rate of 174 lbs per inch. I realize you didn't want more than 1" of
spring lift, but with the weight of the 304 the YJ spring likely will not
produce 1.5" of lift on your CJ. The rear Rancho YJ spring #44147 will be a
direct bolt in, no mods required. The front will require new spring mounts
and U bolt plates. If you don't feel like fabricating them, JKS sells a
complete conversion kit to mount YJ springs on a CJ. If you want to save a
little money, purchase some used YJ springs from a junkyard.

"I have a shackle lift on my 92YJ. This allows me to
run 31' mud terrains. The only problem I have experienced is front-end caster is off by 3
degrees which makes for wandering at speeds over 40mph. I found out about the caster
problem from Big O. They said there is no way to adjust the caster. I don't have the
money to get a complete suspension lift and the tires are going to stay. It took me a
lot of time to convince my wife how much better the mud terrains would perform than the
old stock road tires. They really do. Any suggestions?"
The reason the caster is off is due to the extended shackles. The shackles
only "lift" one end of the spring. This results in the axle rotating
slightly. You have two options to corect the caster. First, remove your
shackles and install a small suspension lift with the stock (or stock length
aftermarket) shackles. This will allow you to keep your 31 inch tires. The
easiest method would be to simply place 3 degree axle shims between the
front axle and spring to rotate the axle back to it's proper position. The
shims are available at any 4wd shop. Make sure your U bolts are long enough
to accomodate the minimal width of the shim.

"I have a 1999 Jeep TJ, with a 4.0 L Manual 5 speed.
It has 15x8 stock rims with 30" GSA's. I would like to put 32- or 33-inch tires on,
what would be your recommended rim backspacing (if any) and ring and pinion size
once completed for both scenarios? Most of my driving is on the pavement."
I'd recommend wheels with 4 to 4.5 inch backspacing and 4.56:1 gears whetheryou run 32
or 33 inch tires.

"I have a 1999 Jeep TJ, with a 2.5 Manual
transmission. I have a 1999 Jeep Wranger with the 2.5l four cylinder motor.
I do a fair amount of off roading and want to gain more ground clearance. My
Jeep is my primary commuting vehicle, and want to keep the car reliable, and
the gas mileage good. I am running the 225R tires but considering a set of 30",
but a little hesitant because of the decrease in power (don't want to change
gearing) and gas milage. I am not considering the lift for increased tire size
so much but I am looking for increased ground clearance, and wheel travel. With
a 2" lift, are you required to drop the transfer case? Does that cause any other
parts on the car to wear prematurly? Can that be eliminated by going with the
1-1/2" spacer lift? Is a 2" Lift going to look or drive poorly with 29 or 30 inch
tires. Any reply would be helpful "
A 2" suspension lift on a TJ will require lowering the transfer case about
an inch. The TJ rear driveshaft is just too short to accomodate the
increased driveshaft angle caused by the suspension lift. The majority of
aftermarket suspension lifts for your TJ will include lowering brackets for
the transfer case. The lift will not cause any other parts to wear
prematurely. In fact, the lowering brackets for the transfer case are
designed to keep your U-joints alive as they would wear very quickly without
them.
Using 1.5" coil spring spacers would most likely still cause enough of an
increase in driveshaft angle to cause vibration. You would then have to
purchase the transfer case lowering brackets separately. Another down side
to spring spacers is that they will give little if any benefit in terms of
wheel travel. Yes, you have moved the axle further from the bumpstops, but
the amount of potential travel in the coil spring is still the same. The
coil cannot stretch or compress any more than it did before you installed
the spring spacer. You may have to lower the bumpstops in order to prevent
coil bind during extreme situations with the spacers installed. The axle
should hit the bumpstop before the spring is compressed to the point that it
becomes a solid piece of metal or serious damage could occur. Regardless of
the lift method you choose, you'll still need longer shocks.
Your TJ should ride, drive, and look very nice with 30" tires, though 29's
may be a little small with the lift kit.

"I have a 1986 CJ7, with a 258 I6/Manual. I have a
4" lift kit in my CJ7 and the springs are very stiff, the guy at the local
4WD shop said that I could take out one of the bottom leaves on the leaf
pack which would probably lower the truck about a 1" but it would ride
softer. How do you feel about this idea? "
Removing the lowest leaf spring will very likely smooth out the ride
considerably. I doubt you will lose much ride height (if any) in the rear,
but I suspect the front end will sag somewhat with the weight of the
straight 6. A lot depends on the number of leaves left remaining in the
spring pack and the length of the leaf removed. My concern would be that
without the lowest spring in the pack that you would greatly accelerate
spring fatigue causing even more sag. There's another thing to consider, the
lower leaf spring typically is the one with the spring clamps attached to
it. These clamps prevent the leafs from "fanning out" like a deck of cards.
If this is the case with your springs, you'll need to purchase some new
"disposable" type spring clamps from your local 4x4 shop to prevent this.

"I have a 1999 XJ with a 4.0/auto. I want to put a 3" lift
on my 1999 XJ 4WD, but what concerns me is the drive train angle and vibration that will
result. Doing my homework, I have the Chrysler 8.25 rearend (is this a good
rearend compared to the Dana 35?) I was told that with the 8.25, I'm going to have to
drop the transfer case one inch, I don't want to start lifting then start
dropping you know what I mean. If using the 3" lift, it almost makes sense
to run 30x9.5 instead of 31's, since it seems that it would articulate a lot better. I
would prefer to run 31's, but what about gas mileage, power loss, etc. (I have
3.55 gears right now)? It seems the '96 and under Cherokees had less chain-reaction
problems. I'm just a perfectionist and for 20 grand, I don't want a
bunch of stress just trying to get more clearance for surfing remote spots
in Baja. HELP!!!!! Talk to me grant! Or, should I settle for the 2" lift
from old man emu you brag about?I would just like to have the clearance of
the 3" Thanks for the reply! Mr. Paranoid."
Yes I'm guilty of bragging about the OME 2" lift, I think it is a huge
improvement in articulation and ride over stock with zero drawbacks.
However, yours truly just removed the OME lift in favor of a 3" kit
for the same reasons you're suggesting. There isn't quite enough room to run
31's, articulation is somewhat limited due to tire and fender contact.
Even with the Dana 35 rear in our project 94 Cherokee, we had to lower the
transfer case to minimize driveshaft vibration with a Rancho 3" lift. This
could be avoided with a custom CV driveshaft conversion, but those don't
come cheap. The OME kit did not require lowering of the transfer case.
If I had it to do all over again, (and I just might do it over again...) I'd
stick with the OME kit, and add their 10mm spring spacer to the front so the
Jeep would sit level. I'd purchase some 16" wheels with stock backspacing
and some 245/75/R16 or 255/70/R16 tires. You'd still have the tire height of
a 30 or 31" tall tire but without the rub on the lower control arms since
the tire would be considerably more narrow.
The gas mileage has not noticeably suffered during around town driving in
our Cherokee w/3.55 gears. The big drawback is on the highway. The Cherokee
will downshift to 3rd on flat ground in a head wind to maintain 70 mph. It
is extremely annoying and a 4.10 gear swap is priority one for our Cherokee
right now.

"I have a 1981 Jeep CJ5, with a 258 6 cylinder with
4 speed manual trans. I want to put 35x12.50 tires on the above Jeep. Will a
one inch body lift combined with a 2-1/2-inch suspension lift work or do I need
to go to a four-inch suspension lift? Thanks for your time and assistance."
You'll need a 4" suspension lift combined with a 1" body lift to avoid tire
to fender contact, particularly off road. You may be able to forego the body
lift and live with some tire rub on the fenders, it really depends on the
specific tire and wheel combination and how much time off road you intend to
spend.

"I have a 1984 CJ-7, with a 258/Standard 5 spd. I
always hear about the spring-over axle conversion for Jeeps, yet I never
hear how it is done. I have the basic idea but I don't know what has to be
done with the steering components, will the springs interfere with any of
the steering components? What about pinion angles, do you just weld tilted spring
perches onto the axle housing? And if so, do you fabricate them yourself or
is there some company you can get them from?"
First, check out www.dirtroad.com/springo.htm.
Yes, you do have to weld new spring perches on top of your existing axles. Before welding, you
must carefully take into consideration the proper placement of the new
perches. Caster and u-joint operating angle should be your primary concerns
prior to welding. Custom axle builders such as Currie or Dynatrac should be
able to supply new spring perches to save you the time of fabricating your
own.

"I have a 1985 Jeep CJ7, with a 304/Auto. I work in
the office for a welding and machine shop in Springfield Mo. I am tring to
come up with a way to create disconnects for trackbars. My question is this
(please do not laugh to hard) What are track bars, I am a fairly new Jeep
owner and all the books and manuals I have and have come across mention
nothing about this part please help:) Thanks Jay"
I think I can understand some of your confusion. Your CJ doesn't use track
bars. Track bars are used on the front axles of Comanches and Cherokees,
and both axles on Grand Cherokees and '97+ Wranglers. Their purpose is to
prevent side to side movement of the axle. One end of the bar will be
mounted solidly to the axle, the other to the frame.

"I have a 1990 Jeep YJ, with a 258c.i./5spd. I
recently had my springs re-arched and lift shackles put on. All told, I
have about 4" of lift. I installed Black Diamond AT shocks at the same
time. The sway bars were lengthened and axle shims put in place. What is
the maximum driveshaft angle for this vehicle? Should I lower the t-case or
find a longer driveshaft? Are there any problems I should be aware of? And
lastly, what is the largest size tire I can install with this lift without
worrying about my rearend gears? Thanks Grant, You're a
lifesaver!"
The smaller you can make the U-joint operating angle the better. I would
suggest less than a 8 degree operating angle to alleviate any worries of
U-joint bind throughout the travel of the axle and insure some longevity of
the joint. Obviously, the greater the U-joint operating angle, the shorter
the joints life will be. Fortunately, U-joints are pretty cheap and very easy to replace. The
important thing is that the operating angles on both sides of the driveshaft
are equal on a conventional driveshaft. You may need to lower the transfer
case and/or use shims under the axle to achieve the correct U-joint angles.
A 4" suspension lift should be plenty to run a 33" tall tire. I'd strongly
suggest swapping to 4.56 axle gears if you install 33's. You can install
any size tire (that will fit) without swapping your axle gears. Just know
that the larger the tire that you install, the higher (numerically lower)
effective axle ratio you'll have. Installing 33's without a gear swap will
probably mean most of your highway driving will be done in 4th gear instead
of overdrive, and a lot more slipping of the clutch to get your jeep
rolling.

"I have a 1997 TJ, with a 2.5/5speed. My Jeep has a
2.5" Rancho lift and 32x11.50 BFG's. I'm wanting to add a .78" teraflex
spring spacer. What will have to be changed to make this possible."
The only problems I can foresee would be the length of your existing shocks.
Most likely they will work fine, you'll just have to make sure you still
have enough travel in the shocks to accomodate the spacers. Be sure to check
your brake lines while the suspension is at full droop for adequate length,
then I'd recommend having your Jeep realigned.

"I have a 1998 Jeep Cherokee, with a 4.0/Auto. I
just purchased an OME lift kit for my Cherokee. Will I have any problems
with 31x10.50's? If so, how much more lift do I need to fit this size
tire?"
The OME 2" lift will clear 31" tires, sort of. If you intend to use the
original wheels, or aftermarket wheels with the same offset and width as
stock, you can clear 31" tires with only occasional rub when the suspension
is near it's maximum travel. If you're going to use a wheel with less
backspacing than the OEM wheels, I'd strongly recommend running a 30" tire
instead. The reason for this is the rear tires will tuck neatly underneath
the fender flares with the stock offset wheels. If the tires are pushed
farther out with non-OEM wheels, contact with the fender flares will occur
much sooner and greatly reduce available travel. The downside to using the
factory wheels (or wheels with the same offset) is a reduced turning radius
due to tire rub on the lower control arms. All in all, I think 30" tires on
stock wheels would be a much better choice since they would allow full
suspension travel and little or no loss in turning radius. You'll need a
full 3" lift to properly clear 31" tires.

"I have a 1998 cherokee XJ, with a 4.0/Auto. I
would like to upgrade my suspension system to the OME 2 inch suspension system. My
only concern is that lifting the vehicle 2 inches will cause vibration problems. Are
there any other issues that I will have to address when installing the OME 2-inch
suspension system?"
I know three people with the same suspension lift you're considering, none
have complained about driveshaft vibration. In fact, the rear U-joint angles
are within one degree of parallel to each other after the lift is installed.
You will not have vibration problems. The lift is not great enough to
necessitate any steering corrections other than an alignment once the
installation is finished. The stock brake lines are also long enough for the
minimal lift. The OME lift is a fantastic kit and will not require any other
modifications once installed.

"I have a 1994 Grand Cherokee, with a 5.2/Auto. I
plan on installing a 1.5" lift (Teraflex Budget Boost). What shock would be
better: Edelbrock IAS or Old Man Emu Nitrocharger??"
Both of the shocks you listed are very good choices. The OME shocks are
valved to match OME springs, not necessarily the stock springs. If I were
installing an OME lift, I'd use the OME shocks. Since the Teraflex 1.5" lift
retains the stock springs, the Edelbrocks may be a better choice. Whether
you choose Edelbrock or OME, I think you'll be very happy with the results.
Before purchasing any shock, make sure they are long enough to accomodate
your new lift.

"I have a 1994 Jeep Wrangler YJ, with a
4.0/Standard. I have just installed a Dick Cepek 4" Lift with 32X11.5/15 BF
Goodrich Mud Terain tires. I expected the same ride...rough, but what I got
was a lot rougher. The dealer who I got the lift kit said there is a
reverse shackle kit which will put the CG of the axles further aft thereby
softening the ride. The kit is over $200. My question to you is...Does it
work? and would it be worth it? Thanks"
A reverse shackle kit will improve the ride somewhat, just don't expect too
much. When you're Jeep hits a bump, the springs absorb the impact by bending
or "flexing". When the springs flex on your Jeep, they momentarily lose some
of their arch and flatten out. As the spring arch decreases when you hit a
bump, the spring flattens and becomes longer. The purpose of a shackle is to allow
for this temporary change in spring length. The problem with having the shackle in
the front of the Jeep is that when you hit a bump, the spring pushes the
shackle forward and against the force of the obstacle, creating a binding
situation where the shackle and the obstacle are pushing against each other.
The result is that your Jeep moves in the only way it can,
usually straight up. This, as you already know, creates a very rough ride.
When the shackle is moved to the rear with the conversion, the shackle
will move rearward when hitting a bump. This allows the spring
to flex freely without having to force the shackle forward and
against the obstacle as it would with the shackle in front. What concerns me
in your situation is that your springs may be too stiff, period. If
the springs are not flexing because of their too high spring rate,
then the shackles are not moving. If that's the case, a reverse
shackle setup would be of no benefit.
You're springs may not be entirely at fault, your shocks may be partly to
blame too. Many companies will sell the exact same shock for a heavy full
size 4x4 for use in a light Jeep. Believe it or not, I've found that the
dirt cheap Rancho RS1000's work very well on CJ's and YJ's because of the
light dampening. You may want to consider changing your shocks to less
aggressive units.

"I have a 1998 Jeep XJ, with a 4.0/Auto. I want to
put a 2" Old Man Emu lift on my Jeep, but I am concerned about the new angle
of the control arms and anything else that may keep the new front suspension
from from functioning as intended by Jeep. What should I be made aware of
in adding new longer springs in front. And do you suggest a drop down
bracket for the control arm mounts?"
The minimum change of angle in the control arms with a 2" lift is not worth
worrying about. Not only is lowering the control arms unnecessary, there
are no drop brackets available to lower them. I can personally testify that
this suspension system works extremely well and does not require any further
modification of your Jeep once installed.

"I have a 1979 CJ-7, with a 258 with 3 speed manual. I
recently put a 2 inch soft ride lift on my CJ-7. I was told that I would not
have to lower my trnsfer case but I would get alot of vibration in the rear
end on take off so I lowered it about an inch using spacers on the cross
member. I still get some vibration on take off and my gear shift is very
close to the body and some times gets kicked out of 3rd gear. I want to
know if I need to purchase degree wedges to change the angle of my rear end
or is there any thing I can do to correct this problem? I would appreciate
any suggestions! Thanks!!!"
A 2" suspension lift on a CJ-7 should not have required lowering the
transfer case. My advice would be too remove the spacers and raise the
transfer case to it's original position to eliminate the shifter problem.
With that done, use an angle finder to measure the U-joint operating angles
at both ends of the driveshaft. The output of the transfer case and the yoke
on the rear axle should be parallel to each other on a non-CV driveshaft. If
the angles are off, use the appropriate wedge on the rear axle to
compensate. For more information, take a look at
articleb.htm
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