Jeep Wrangler Forum

Jeep Wrangler Forum (http://www.wranglerforum.com/)
-   TJ Tech Forum (http://www.wranglerforum.com/f210/)
-   -   New Lift Wobble Question (http://www.wranglerforum.com/f210/new-lift-wobble-question-251627.html)

drdexter33 06-25-2013 09:30 AM

New Lift Wobble Question
 
I recently had a 3-1/2" Rough Country installed on my 2000 TJ with 32" new tires and 15" wheels that were balanced and also had an alignment done.

Problem is around 50-55 mph, I'm getting some noticeable wobble until i get up to 60.

Any ideas of what the problem might be?

Thanks

Doug

Water Dog 06-25-2013 10:04 AM

If the wobble is just at certain speeds and will go away as you increase speed, it's most likely a tire that's out of balance. The bigger the tires, the more critical accurate balancing becomes. If a shop did the lift and alignment/balance, take it back to them.

MFsoftball22 06-25-2013 10:06 AM

Quote:

Originally Posted by drdexter33 (Post 3897387)
I recently had a 3-1/2" Rough Country installed on my 2000 TJ with 32" new tires and 15" wheels that were balanced and also had an alignment done.

Problem is around 50-55 mph, I'm getting some noticeable wobble until i get up to 60.

Any ideas of what the problem might be?

Thanks

Doug

Is it a wobble or vibration?

Arch Stanton 06-25-2013 10:07 AM

Quote:

Originally Posted by Water Dog (Post 3897505)
If the wobble is just at certain speeds and will go away as you increase speed, it's most likely a tire that's out of balance. The bigger the tires, the more critical accurate balancing becomes. If a shop did the lift and alignment/balance, take it back to them.

What about getting DW after going over a bump or series of bumps going between 40-55? The vehicle shakes violently and I have to slow down and pull over if possible.

Neil F. 06-25-2013 10:11 AM

Very common for wheel balance and wobble in the 50-60 range.

Neil F. 06-25-2013 10:12 AM

Quote:

Originally Posted by Arch Stanton (Post 3897514)
What about getting DW after going over a bump or series of bumps going between 40-55?


Then wheel balance it not the issue.

drdexter33 06-25-2013 10:23 AM

Vibration probably more so than wobble.

drdexter33 06-25-2013 10:23 AM

I bought the tires/wheels on ebay..

lynn 06-25-2013 10:25 AM

New Currie front LCAs with Johnny Joints and mrblaine's johnny joint washers eliminated my steering shakes/DW.

Symptom was steering wheel shakes @ 47-53 mph, with occasional escalation to DW depending on road surface.

Arch Stanton 06-25-2013 10:51 AM

Quote:

Originally Posted by lynn (Post 3897578)
New Currie front LCAs with Johnny Joints and mrblaine's johnny joint washers eliminated my steering shakes/DW.

Symptom was steering wheel shakes @ 47-53 mph, with occasional escalation to DW depending on road surface.

Maybe that would be a solution for DW? Are your other control arms stock? What size lift do you have?

TheDesertOutlaw 06-25-2013 11:02 AM

Quote:

Originally Posted by drdexter33 (Post 3897387)
Problem is around 50-55 mph, I'm getting some noticeable wobble until i get up to 60.

Any ideas of what the problem might be?

Any radial run-out on the wheels you purchased? I once bent two wheels on the trail, and I could not figure out why my (new) tires did not balance. Wobbles occurred at ~50 mph.

Also, did the people who aligned your front end actually reTIGHTEN all of the hardware? Are your swaybar links good and snug? Are your tires inflated at the same psi?

drdexter33 06-25-2013 11:02 AM

The lift is 3-1/2"

I believe they put control arms on.

MFsoftball22 06-25-2013 11:09 AM

Quote:

Originally Posted by drdexter33 (Post 3897568)
Vibration probably more so than wobble.


Well wobbles are usually more associated with the steering. Do you feel these vibes/wobbles in the steeringing wheel mainly or through the body of the vehicle.

Exactly what kit did you get?


If wobble I would check your front steering components. Do you have a drop pitman arm? Check the Tie Rod Ends? Did you have alignment done? Any steering Upgrades? Stock control arms?


If it is more of a vibe I would say that it is a drive line issue. SYE/CV-Driveshaft or T-Case Drop or what? Did you adjust your pinion angle? Tires Properly Balanced?

Need to give a little more info about your setup so we can effectivly help you.

TheDesertOutlaw 06-25-2013 11:13 AM

Quote:

Originally Posted by MFsoftball22 (Post 3897680)
Need to give a little more info about your setup so we can effectivly help you.

Close up pics of the steering components might help, too.

lynn 06-25-2013 11:32 AM

Quote:

Originally Posted by Arch Stanton (Post 3897629)
Maybe that would be a solution for DW? Are your other control arms stock? What size lift do you have?

Arch, I'm running an 05 LJ with 3" suspension lift. Was all stock control arms. Lift has been on for about 35K miles. Always had a slight vibe, and was becoming worse over the past year, so I was avoiding that speed range. When it developed into full DW a couple times (gradual right bend in the road, with some bumps, at speed, set it off) I knew I had to track it down. All components appeared tight, tire balance was OK. I went after the front LCAs. The stock bushings looked OK (for 48K total miles) upon removal, but the fit on the bolt was sloppy, and the position in the slot was not as dead-on positive as it is with Blaine's washers.
Bottom line: steering feels more positive, and my shakes are gone.
It worked for me... YMMV ;)

T2000J 06-25-2013 12:19 PM

Quote:

Originally Posted by drdexter33 (Post 3897568)
Vibration probably more so than wobble.

Pull your rear shaft and go for a ride .
There is a big differance between vibs and a wobble .

Water Dog 06-25-2013 02:12 PM

Normally, driveline vibes wouldn't go away with more speed, they would get worse. Are you feeling the vibration in the steering wheel or in your seat?

Arch Stanton 06-25-2013 02:17 PM

Quote:

Originally Posted by lynn (Post 3897748)

Arch, I'm running an 05 LJ with 3" suspension lift. Was all stock control arms. Lift has been on for about 35K miles. Always had a slight vibe, and was becoming worse over the past year, so I was avoiding that speed range. When it developed into full DW a couple times (gradual right bend in the road, with some bumps, at speed, set it off) I knew I had to track it down. All components appeared tight, tire balance was OK. I went after the front LCAs. The stock bushings looked OK (for 48K total miles) upon removal, but the fit on the bolt was sloppy, and the position in the slot was not as dead-on positive as it is with Blaine's washers.
Bottom line: steering feels more positive, and my shakes are gone.
It worked for me... YMMV ;)

Thanks Lynn for the detailed information! Besides getting rid of the DW, did the ride improve with the LCA's?


All times are GMT -5. The time now is 05:39 AM.