This skinny - 2010 jeep JKU has a wobbling squeak in the rear (no wobble felt however, trying to describe sound) when I leave the jeep in gear and brake. Only time it starts the wobbling squeak is around 30km/h and vanishes around 20 km/h when slowing down only.

I checked the bearings and ujoints - no noise or movement. Took the calipers off and inspected them and they're fine. Anyone else have any ideas?

This was caused by my tail end sliding into a tree in the winter at about 10-15km/h. Hit the tree with my rear right tire smack in the middle. Seems to be where the sound is coming from.

Other symptoms:
- click sound when emergency brake engaged. Like someone flicking the brake dust shields with their finger...can't determine the cause.
- negligible death wobble at 80-90km/h (after incident)

-35" tires are perfectly balanced. Kit is AEV 3.5 premium.

I feel like my next step is a professional wheel alignment, but I can't see that fixing the odd squeaking issue.

Your thoughts and opinions will be appreciated!

Marco

 

lol Dynatrac axle ad keeps appearing; i wish.- bump.

 

Bent axle flange maybe

 

I took the rear-passenger caliper and disc off, inspected the flange, straight and true.

I started playing with the shaft however, and I got some movement - I'm not sure how much is negligible though.

With both rear tires off the ground and on jack stands, rotating the rear-passenger flange/shaft clockwise I get about 1/8" inch give before the spider gears and driveshaft start spinning.

Wiggling the flange I get less than a hair of movement, but enough to make an audible note that something is moving if that makes sense.

 

hmm... to my passive like thinking, the dana44 on a JK isn't anything like a Dana35 on a TJ...no hub! Here I thought I could replace the wheel bearing myself with basic tools.

Here is a good reference for anyone coming across this thread in future searches:

Exploded view of rear Jeep JK Dana44 Page 106

If link broken - www2.dana.com >light axle >literature and catalogs > light axle parts for jeep applications 1999-2011

 

And a video as to what im talking about...

http://smg.photobucket.com/albums/v335/Akula_47/Jeep%20Specs/?action=view&current=video-2012-05-24-11-44-50.mp4

 

Nice video

I would use a dial indicator mic on the flange and rotate to see what your runout would be, and then check the axle end play with it

 

hah thanks

Never heard of a dial indicator mic. Did a quick search, what kind would you use. Also is there an established runout limit? Not sure if I entirely follow.

After some mild wheeling this weekend, the squeak has become more prominent when slowing down (in gear mainly)). It is definitely from the rear passenger side tire/wheel. I just can't make sense of it right now. I can't recreate the squeak when stopped either which is odd.

 

A couple of questions in no particulate order
1 have you rotated the tires yet?
2 rebalanced the tires since you slid into the tree?
3 Did you go over a curb when you hit the tree?
4 any funny wear patterns on ANY of the tires?

As well have you checked the rear suspension for any damage, binding? Where does your wobble start from ( death wobble is not negligible)? Have you inspected the front since? Some sounds are hard to find, as well have you retorqued the suspension?

With out dial indicators you won't be able to tell if you axle is bent, the play that you have in the shafts ( in/out rotating ) is normal.

 

dial indicator



Check left against right axle flang to see if they are the same
35 bucks @ HF

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