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Old 04-15-2016, 02:39 PM
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Contact issue with RK Max Travel turned 3 link

My rear upper trackbar mount is making contact with my bumpstop pad. I have pulled the upper link in all the way and am sitting at between a 0 and -1 pinion angle. According to RK, with a -2 pinion angle there won't be any clearance issues. That leaves my only option to push the lowers out to achieve another degree of negative pinion. But looking at it, I can't imagine that that small amount of adjustment is going to stop this from happening. I am asking because I was having things checked out and was told by the owner that he recommends moving the frame-side mount rear an inch to provide clearance and keep the TB from hitting the springs. It seems logical, but RK is pretty adamant that it is not required unless stretching more than 3 inches... thoughts?


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Old 04-15-2016, 03:02 PM   #2
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You are not using our bumpstop pad, that is an issue. You will need to trim that bumpstop pad. You do not need to alter your upper track bar mount otherwise with the correct pinion angle/bump stop pad.

Why we angle our bumpstops:
JK Fabricated Rear Bump Stops

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Old 04-15-2016, 03:04 PM   #3
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How far you have the axle back?
You would have to bring all 4 in fyi.

Moving the bracket is the best option imo. I plan on doing it to take bind of the TB.
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Old 04-15-2016, 03:07 PM
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Quote:
Originally Posted by Rock Krawler Sus. View Post
You are not using our bumpstop pad, that is an issue. You will need to trim that bumpstop pad. You do not need to alter your upper track bar mount otherwise with the correct pinion angle/bump stop pad.

Why we angle our bumpstops:
JK Fabricated Rear Bump Stops
I see that, and have seen that answer elsewhere as well. But even if there was no bumpstop, it would still hit the stock metal pad. So I don't see how an angled bumpstop would solve this. That pad is only 1/2" at most

BTW, thank you for stepping in so quickly. I am fairly new to tinkering with angles to get things perfect.
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Old 04-15-2016, 03:12 PM
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Quote:
Originally Posted by kjeeper10 View Post
How far you have the axle back?
You would have to bring all 4 in fyi.

Moving the bracket is the best option imo. I plan on doing it to take bind of the TB.
To move the axle away from the bracket, yes all would have to come in, but to increase the negative pinion as recommended by RK I need the lowers to go out.
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Old 04-15-2016, 03:21 PM   #6
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What lift, tires size, shocks are you running? Typically with a 1.5" Lift we are using a 1" rear bump stop pad. That is enough clearance with a set of flat fenders and 35" tires or factory fenders and 33" tires.
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Old 04-15-2016, 03:37 PM
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3.5" RK Max travel from about 4 years ago so it still has the progressive springs and not the new triple rates. I am using your 3 link conversion but with an Artec truss and 3 link mount made for the RK setup. I am on 37s with flats and the fox JK tuned resi shocks for 4-6". The bumpstop pad on there is the receiving end of the Teraflex 2.5" rear speedbump.
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Old 04-15-2016, 03:39 PM   #8
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Quote:
Originally Posted by jagerhelix View Post
I see that, and have seen that answer elsewhere as well. But even if there was no bumpstop, it would still hit the stock metal pad. So I don't see how an angled bumpstop would solve this. That pad is only 1/2" at most BTW, thank you for stepping in so quickly. I am fairly new to tinkering with angles to get things perfect.
Thats how i looked at it too.

Move it back or double sheer off the stock bracket.
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Old 04-15-2016, 04:11 PM   #9
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Trim that bump stop and see where you land. It appears you are very close to hitting your bump or the tire on the body (37's and that much up travel). You may get away with it trimmed. Also, turn that bolt around (upper track bar) so it points towards the rear of the vehicle. There will be less trimming.

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Old 04-15-2016, 04:22 PM
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Will give it a shot, I'll take the pad off completely and see if it clears. I have already trimmed the body

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