brando13

I had a 4" Superlift installed a couple weeks back, and last Friday, I had my 37" KM2's installed. Tonight, as I was driving, I noticed a weird noise/jerk when I was coasting/slowing down. If I apply gas or brake it stops. It has gotten worse as I've driven it tonight. I'm thinking it's a driveshaft issue, but it's too late and raining for me to actually check it out. Any other ideas?

high-octane

Just a guess but did you have the brake calipers loose for anything? Sounds like maybe one of the calipers may be loose and when you touch the brakes they tighten up from the pressure on the pads. Just a guess though. Could be alot of things. Make sure your wheels are tight. Then start checking all your suspension stuff.

aero_instability

Try pushing down on the front bumper, and see if you can reproduce the sound. I spent last weekend diagnosing a similar problem.

I was was very concerned I had broken something after a somewhat random squeak/clunk/creaking appeared. I suspected the adjustable track bar even though I knew it was tight. I was right...it turned out to be the upper front trackbar mount.
When I removed/inspected the track bar, I saw that that the bushings were not flat because the welds were causing the bushing to bow (sorry no pic). Didnt notice when I installed it. Anyway, because the bushing wasnt flat, it made a noise every time the front ride height of the jeep adjusted. A touch on the bench sander took care of it...no more squeaks!

Similarly, it might be the sway bar bushings...I put some mystic jelly (hi temp lube) on mine...havent made time to zerk-fit them.

HTH.

greenmachine07

could you get some pics of that
i think i have the same problem, i just walked outsidce and pushed on my front bumper. same nosie thingy. not really sure what you did before sanding

YankeeJim

When you are how ever did the lift the drive shafts were corrected wernt they?
If they were then go under and make sure everything that was changed or loosen is tight to spec.

pentagon

Just installed a AEV 2.5 lift on a 2013 Moab. Rides great on the road and handles great. After two weeks started getting a squeaking noise when stopping. Any suggesting out there.

Tripletsi

Re torque every bolt, it's pretty common to do this after a lift install. I'm sure it's even stated in the instructions, most likely something just loosened up.

jeep_pride

^2 just installed my lift about a week ago bolts tend to loosen up. Check every bolt.

pentagon

Re torque work each bolt. Noise is gone. Thanks

Now it is time to start shopping for tire's.

pentagon

Thanks that worked.