Join Date: May 2009
Location: Taos, New Mexico
Thanks for all your work and posts on this shimmy/DW topic!!!
Here's a story you might comment on...
Two weeks ago, just got home after some off-road trails in SW Az and towing the '08 Jeep 700 miles from Az to home. I immediately changed the tires from the MT tread to the AT tread for DD routine. After a few days on the AT tires, I noticed a slight wobble on smooth highways at about 55-60 mph...over the next few days, noticed that it only happens on the way to work, when the temperature is about 20 deg... while on the way home, no wobble... temp is about 60 deg. The next day, on the way to work, it started up again, so I slowed down and put it in 4WD-Hi, went back to 60 mph and no wobble, no shimmy, nothing, all normal. Did this for about 30 seconds, then shifted back to 2WD, still no wobble/shimmy. Next day, going to work, same shimmy/wobble.
That night I found this thread and your video/checklist and this morning I went through the checklist. BTW, odo is at 39,000 miles. I /checked/put the correct torque on all the bolts, they had already been changed to 9/16"...The trackbar bolts started to tighten at about 80 ft-lbs and now they are at 120 ft-lbs or more. I did the ball joint test with a jack/shovel (like the video) and both sides have about 1/16" of play. I checked everything else and it all seems good per the list. Just took it on a test drive and the wobble/shimmy was much less but still there, slightly... but it went away after driving about 5 minutes or less on the usual highway.
Based on reading all your posts in this this thread, I guess I'll go get new ball joints installed... The "play" is much less than in your video but still there is some and I can hear the "clunk".
I am assuming the tire balance has not changed in the 3 weeks the AT tires were in storage... But, there was no wobble/shimmy in Az with the MT tires! So maybe I need to get the tires balanced...
Geezer from NM
"Wisdom isn't cheap; we pay for it with pain