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-   -   tire to body spacing? (http://www.wranglerforum.com/f210/tire-to-body-spacing-237590.html)

StephenB 04-24-2013 08:20 PM

tire to body spacing?
 
Ok, so the issue I encountered today.. My back right tire is less than two inches away from my coil, whereas the back left is about 4 inches, its a very noticeable difference and I have no idea what is causing it, any ideas?

Jerry Bransford 04-24-2013 08:32 PM

That happens whenever a suspension lift is installed but it is easily fixable.

The reason is the track bar & how it positions the axle left/right. The track bar connects to the axle on the driver's side & to the frame on the passenger side.

Like the letter Z where the diagonal part is the track bar, the lower line is the axle, & the upper line being the frame. If you lift the top up from a suspension lift, the diagonal part (the track bar) will pull the axle to the side.

The fix is to install an adjustable length track bar that can be adjusted longer to compensate for the suspension lift, or to install a trackbar relocation bracket that moves the trackbar's driver's-side mount over a tad to compensate for the increased suspension lift height.

Offrd 04-25-2013 09:20 AM

Quote:

Originally Posted by StephenB (Post 3679117)
Ok, so the issue I encountered today.. My back right tire is less than two inches away from my coil, whereas the back left is about 4 inches, its a very noticeable difference and I have no idea what is causing it, any ideas?

Just curious about how big a lift you have.

StephenB 04-25-2013 04:06 PM

I have 4" suspension, track bar relocation bracket and adjustable track bar

Jerry Bransford 04-25-2013 04:10 PM

Since you already have a rear track bar relocation bracket & adjustable track bar, it's clear the track bar length has simply not yet been set properly.

StephenB 04-25-2013 04:11 PM

Ok, so I just have to play with it until it sits even? Too easy :) thanks all

Jerry Bransford 04-25-2013 04:15 PM

Unbolt one end of the track bar. Jump up & down on the rear bumper to "jounce" the suspension which will usually cause the frame to self-center over the axle. Then adjust the track bar length so it bolts up & that's it.

mrk130 04-25-2013 06:22 PM

Quote:

Originally Posted by Jerry Bransford (Post 3679175)
That happens whenever a suspension lift is installed but it is easily fixable.

The reason is the track bar & how it positions the axle left/right. The track bar connects to the axle on the driver's side & to the frame on the passenger side.

Like the letter Z where the diagonal part is the track bar, the lower line is the axle, & the upper line being the frame. If you lift the top up from a suspension lift, the diagonal part (the track bar) will pull the axle to the side.

The fix is to install an adjustable length track bar that can be adjusted longer to compensate for the suspension lift, or to install a trackbar relocation bracket that moves the trackbar's driver's-side mount over a tad to compensate for the increased suspension lift height.

Is there a minimum lift height that you need to install this for? I have a RC 3.25. I don't think an adjustable track bar was installed? What are the potential problems if you don't install one?

C.L. 04-25-2013 06:43 PM

You may also want to use tire-to-body references for centering the axle. If one of your coils is bound/warped/twisted or slipped in its perch it may look closer to the tire than the other, even if the axle is centered properly.

Pull the tires and use the caliper mount to frame rail distance if you want super accurate measurements; tire/wheel/bearing/body differences can throw off something like "the outside tread lug to fender flare" distance.

Neil F. 04-25-2013 08:29 PM

Quote:

Originally Posted by mrk130 (Post 3682778)
Is there a minimum lift height that you need to install this for? I have a RC 3.25. I don't think an adjustable track bar was installed? What are the potential problems if you don't install one?

There is no problem with off center axles. It is not going to affect tire wear or handling. The only problem is if it causes a tire to rub.


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