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Old 04-24-2013, 08:20 PM   #1
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Question 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?

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Old 04-24-2013, 08:32 PM   #2
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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.

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Old 04-25-2013, 09:20 AM   #3
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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.
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Old 04-25-2013, 04:06 PM   #4
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I have 4" suspension, track bar relocation bracket and adjustable track bar
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Old 04-25-2013, 04:10 PM   #5
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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.
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Old 04-25-2013, 04:11 PM   #6
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Ok, so I just have to play with it until it sits even? Too easy thanks all
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Old 04-25-2013, 04:15 PM   #7
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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.
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Old 04-25-2013, 06:22 PM   #8
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Quote:
Originally Posted by Jerry Bransford View Post
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?
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Old 04-25-2013, 06:43 PM   #9
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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.
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Old 04-25-2013, 08:29 PM   #10
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Originally Posted by mrk130 View Post
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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