Hey guys...long time no type. After riding on top of Pro Comp Coils on my YJ I am still having some problems. Below is a copy of a letter I sent to Pro Comp.......
> I installed your CSC kit on my Jeep several months ago and must say that
> the on road ride is nice. I had someone help me install the kit that
> had installed one of the kits before that used to work for Essentially
> Off Road in Murphressboro TN.
> I am having two problems that no one can help me with. I called your
> tech support but the guy I talked with kept going outside to look at one
> of the Jeeps with the kit installed on it. He was some help but not
> The bump steer on the road is a bit scary ( I have the steering damper
> The second issue is the off road suspension travel. The lower control
> arms hit the coil spring axle mounting bracket when there is very little
> down travel. I thought I could decreases the front axle caster and help
> the problem but then my steering becomes sluggish and unpredictable. I
> assume that there is only one way the lower control arms on the front
> axle can be installed along with the coil spring brackets on the axle
> since they use the old spring perch as a locator.
> I looked on your web page for local shops who could help look it over
> but no one was interested since they did not install the kit or buy it
> from them. I bought the kit from Essentially Off Road but they can't
> answer my questions except to say that on the only other Jeep they
> installed it on they do not have these problems.
> Please help me guys...I have not a good off road experience with the
> coil kit. As it stands the old 4" Pro Comp Leafs I had were much
> better. I am not an idiot - I do engineering and and machine design
> work and the level of difficulty of your kit was not too bad. I just
> need some tips or pointers on troubleshooting to make sure I am not
> missing something fundamental. Maybe something on my axle or frame is
> One more piece of info that may be relevant. I installed the 6 cyl.
> version of the kit and my Jeep has a Chevy 4.3 V6 installed under the
> hood. It weighs a tad less than the 4.0l.
> Please help a longtime faithful Pro Comp customer!
Well... for the response I recieved a phone call from a guy named Kirby at Pro Comp. He had helped design this kit he said. He told me to install the anti sway bar mod with the kit to add pre load to the front springs. As for the lower control arms hitting the axle bracket, he said to install them backwards - put the axle end in the frame mount.
I have not done those things yet. The sway bar will probably fix the some of the bumpsteer. Looking at the way the lower control arms mount it looks like it will make the interference problem worse. Besides it will be a [email protected]
#$% to swap those around - I am sure they will slide back in with no problems ;-).
Anyone's thoughts and ideas will be appreciated. Apparently the only way I can get concrete answers is to take this thing to Pro Comp!
88 YJ (sort of)