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37's pinch seam trimming

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Old 09-09-2012, 12:05 PM
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Default 37's pinch seam trimming

I have a RK 2.5 max travel and 37 km2's coming this week. How much trimming am I going to have to do? Can somebody post pictures please? I already trimmed the rock rail and little bit of the seam behind that. The pic is with 35's and no lift. Thanks Bill
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Old 09-09-2012, 12:37 PM
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How much did u cut off the rock slider
Old 09-09-2012, 12:42 PM
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Hard to say exactly because it depends on your lift. It looks like you have stock rear LCA's, so moving the axle back isn't an option. I'd say you'd need at least another inch or so. Keeping the rail at the same length or a hair longer than the seam will at least keep the pinch seam from cutting a groove into your tires.

Here's what happens when you mount 37's and don't trim the pinch seam enough. The sound you hear at the beginning of the vid is a Nitto TG getting siped by the seam.

http://youtu.be/33HjMtU0oR8

Last edited by JohnnyQuik; 09-09-2012 at 12:44 PM.
Old 09-09-2012, 12:51 PM
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Originally Posted by JohnnyQuik

Here's what happens when you mount 37's and don't trim the pinch seam enough. The sound you hear at the beginning of the vid is a Nitto TG getting siped by the seam.

Video Link: http://youtu.be/33HjMtU0oR8
That just sounds painful...
Old 09-09-2012, 12:55 PM
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I cut about 1-1/2' off and I have rk lca on now. just the lowers. I assume I would need the uppers too to move the axel back?
Old 09-09-2012, 03:46 PM
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Originally Posted by Fourtango
I cut about 1-1/2' off and I have rk lca on now. just the lowers. I assume I would need the uppers too to move the axel back?
Yeah, you need both to move it back. Just the lowers only allows you to rotate it. You move the axle back and you can start getting into the rear pinch seam behind the tire. I watched this happen to another Jeep running 37" MTR's on that same trail a few months ago.
Old 09-09-2012, 06:33 PM
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I cut the seam in front and in the rear of the back tire just in case cuz I'm gonna get upper and lower arms soon



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