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Post by RubiRedLJ on Jul 20, 2007 10:38:23 GMT -5
I currently have "minor" shakes at times.....usually over a bump or railroad tracks, etc. Lasts for just a quick second or two and it's over. I believe it's either the trac bar or the front wheels being out of balance. #1-It never shook like this before the lift. (except once when I put my spare MTR on, and it wasn't balanced correctly...) #2-I've went over the front end with a fine tooth comb and only found slight movement in the axle end bolt of the front trac bar. I torqued it down to 55lbs., and have checked it occasionally. The wobble or shake is still there though. Worst case scenario, I take it in to the dealership, and have them double check my 4 wheel alignment and make sure everything is dialed in correctly. Gotta love Jeeps..........other folks just wouldn't understand!  |
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Post by nfunlimited on Jul 20, 2007 14:34:52 GMT -5
I went through all that last year....see the "wobble with lift" thread.
Anyway, for me the alignment helped, but the main cause was inproperly worn tires. They had become "scalloped" over time, and caused the wobble.
As a temporary bandaid, try lowering your tire pressure a bit. I used about 25 - 28 pounds. This reduced the effects until I could properly check everything.
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Post by Steve on Jul 20, 2007 19:41:11 GMT -5
My problem was totally solved with a front-end alignment.
Steve in Maine
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Post by atcjeeper on Aug 7, 2007 19:41:15 GMT -5
Front shake is back and pissed. It's not safe to drive on the interstate, I had to pull off the road twice in a 5 mi trip to keep from shaking the thing apart. Off to the dealership on thursday. Wish me luck...
Eric
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Post by jered_jmm on Aug 7, 2007 23:13:45 GMT -5
Are your trac bar and drag link pretty parallel? I know a guy in my club he had bad DW so we put a DPA, and a drop trac bar bracket to keep them as parallel as possible. After that he got a full alignment and balance, it never came back.
Just some things to think about.
Good luck BTW
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Post by atcjeeper on Aug 8, 2007 14:42:49 GMT -5
jeredjmm,
I would'nt think the 2.5" OME lift would need a DPA but as they say, every jeep is different. I'll take a look at that. Thanks.
Eric
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Post by jered_jmm on Aug 9, 2007 0:11:11 GMT -5
Yeah, I thought usually after 4" you might need one but....
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Post by maxama10 on Aug 9, 2007 1:10:46 GMT -5
Unlikely, but I did bend a rear axle shaft at one point. It wasnt bad and I dont know how I did it but it would wobble like crazy at high speeds and they used a caliper ( i think?) to measure the difference as the hub turned and they figured it was bent. Anyways, I'd take it down to a local shop and see if they cant do it for you. I took mine to a tire shop who did it for free. Jeep dealership actually replaced it for free too. Good luck.
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Post by atcjeeper on Aug 9, 2007 16:16:28 GMT -5
Dealership answer: "It's because of your lift, you need a heavy duty steering damper and there is something wrong with the lower controll arms." I told them the hundreds of jeeps with much bigger tires without the beefier damper and the control arms are stock. "Well I'm not sure what he (the tech) said about the control arms but the damper is the problem and your lift voids all the warrante on suspension parts. " BULLS#IT! Not to mention he's had my Jeep since 730am and he never called me. I had to call them at 400pm to find out what the hell is going on. ...Jackass. I could have picked it up early and taken it to someone who is willing to fix the problem.
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Post by jered_jmm on Aug 9, 2007 19:01:25 GMT -5
Thats BS! I hate sh*tty customer service like that, how they didn't even bother to call you.
The "tech" should know that the damper only covers up the problem, not fix it. Really you don't "need" the damper or SS with a properly setup steering and such. I'll ask ROF too, they seem to have a lot of people on there, mabye someone can help.
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Post by atcjeeper on Aug 10, 2007 8:48:14 GMT -5
Thanks jeredjmm, I'd appreciate that.
I took "Shakes the Clown" over th a local off-road shop late yesterday after the dealership BS. He said he's helped a few people with my lift with a drop pitman arm but it's been on the SWB Wrangler. He took a look at it 10min to closing time and noticed a wrong size bolt was replaced on my trackbar when I tried to tighten everything down. He said it was too small and may cause some slop (dealership did not mention). He also drilled and installed the third bolt on the rear track bar bracket which I never did (unrelated). Although he mentioned he wasnt fond of the stock stabilizers he didn't try to hard sell me on anything, he charged me $20 and told me to call him back today if the adjustments didn't solve the DW. it's definatley better but still there, I'll be calling soon.
So here's my novice theory on what went wrong. Keep in mind I'm a newbie and not mechanicaly inclined...yet, so feel free to let me know if I am talking out of my arse here.
1. I did not get an alignment after installing my lift because there was no pull or shake.
2. There was no shake because my steering damper was compensating for the lack of an alignment. (also explains the premature tire wear).
3. When trying to tighten everything down, the front track bar bolt was broken and replaced with a bolt that was too small putting more strain on the damper.
4. Got an alignment which helped again but now the wrong size bolt caused slack in the steering still straing the damper.
5. The correct bolt is installed but the damper just plain wore out from working overtime the last 12,000 miles.
or
There's a flaw in the design and Jeep is holding out..nah, too simple.
Let me know what you think. Don't worry, I have too much time to dwell on this and no ego to bust.
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Post by jered_jmm on Aug 11, 2007 11:56:20 GMT -5
I tried asking but really got nowhere. Got the old "Go Search" stuff.
They just pointed me to the stuff I already posted on Pg. 1 of this thread.
Good luck in solving this.
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Post by atcjeeper on Aug 15, 2007 18:58:21 GMT -5
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Post by jeepnut on Feb 7, 2008 19:11:48 GMT -5
I know this thread is a bit on the old side, but I too have had vib problems since the lift. At first, I got an allignment, which didn't help what so ever, besides my tires were worn so unevenly. Dealt with the problem until I got some new tires, but the vibes weren't half as bad. Now that the tires are wearing a bit, the vibes are getting worse. So I will be taking the jeep to get looked at by a shop that deals with lifts/aftermarket all the time and hope all get figured out. I also think one of the rims my be bent, from the factory causing vibs. Is this possible?
My problems are noticed when...
1. Its really cold outside, first get into the jeep and drive to work in the a.m.
2. Okay until speeds around 60-65 mph, then the seats, roof rack all shakes.
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Post by scrambler81 on Feb 7, 2008 19:46:39 GMT -5
That kinda sounds more like a tire issue, mine wasn't like that. I ended up replacing the trackbar bushing with urethane(?) job and it went away. Cost me about $6.00.
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