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Old 12-01-2008, 09:38 PM   #1
ericpost
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Bump Stop?

I'm putting 6" of suspension lift under my truck by installing 56" rear springs with a 4" lift and stock 52" rear springs in the front. I'm using DIY's 4" rear shackle flip and front spring perch.

My question is do I simply add 6" to my bump stop or is there some sort of weird geometery (there almost always is) calculation which I am no longer capable of performing that I need to consider?

Also I was just planning on stacking 2" or 3" square stock to get the hieght I need, any other ideas?
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72 GMC Jimmy, 350, sm465 np205 (getting a face lift)
64 Nova SS, 327 SC & gassed, TH350. (blowed it up)
84 HD FX frame,80 FL tins, evo with 85hp/90tq (wifes bike)
96 HD FatBoy evo with 102hp/100tq (mine!)
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Old 12-01-2008, 10:46 PM   #2
skchevota
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Re: Bump Stop?

If you need to stack in the front, make sure it has the center pin going throug it( bolted through), and keep it at 1" or less. If you need more, use an add aleaf or modify your mounts/ shackles.
In the rear you should be fine with the 4" springs and the flip kit, that is going to give you about 8" of lift
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Old 12-01-2008, 10:49 PM   #3
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Re: Bump Stop?

Opps, I forgot the bump stops, bepending on what size tire you are running, is what will determin where to put the stops. The best way is to cycle the suspension, and articulate it, then install your bump stops so that the tire dont rub.
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Old 12-01-2008, 10:59 PM   #4
ericpost
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Re: Bump Stop?

Quote:
Originally Posted by skchevota View Post
If you need to stack in the front, make sure it has the center pin going throug it( bolted through), and keep it at 1" or less. If you need more, use an add aleaf or modify your mounts/ shackles.
In the rear you should be fine with the 4" springs and the flip kit, that is going to give you about 8" of lift
The 4" shackle flip nets only 2" if you use the brackets on the opposite side to run longer springs (thanks to Grendel for that info).

I was thinking of stacking square stock to fab the bump stop extension
__________________
72 GMC Jimmy, 350, sm465 np205 (getting a face lift)
64 Nova SS, 327 SC & gassed, TH350. (blowed it up)
84 HD FX frame,80 FL tins, evo with 85hp/90tq (wifes bike)
96 HD FatBoy evo with 102hp/100tq (mine!)
KEEP NOTHING STOCK!
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