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Old 07-12-2011, 10:16 AM   #1
Drpinkydo's Avatar
Join Date: Oct 2010
Location: West Chester, PA
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Can someone please confirm or correct me?

My '91 YJ currently is running on 35s with Dana 30 and 35, 3.55 gears and SOA. I just picked up a ford 8.8 with 4.56 gears and a Detroit tru Trac with only 20k miles on the gears and Tru Trac for a very good price. My shackles are +2. When I swap out the rear, I should change the rear shackles to +1 to keep me level right? Thanks for the help.

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Old 07-12-2011, 01:44 PM   #2
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Depends on your spring sag. Great find on that axle, gear, posi unit! That ratio will really help reclaim some of your power lost to the big tires.

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Old 07-13-2011, 06:53 AM   #3
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My springs really don't have any sag right now. The tub is sitting level right now. I guess I want to know if I should use a shorter shackle to keep me level after swapping a Dana 35 SOA to a Ford 8.8 SOA? I would like to remain as level as possible. Thanks again
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Old 07-21-2011, 12:32 PM   #4
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Bump. Anyone?
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Old 07-29-2011, 04:28 PM   #5

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You're only going to gain 3/8" height due to the axle tube. So, providing your new perches aren't taller than the existing perches on the 35, it shouldn't be a problem.
Ero sum: aut viam inveniam aut faciam = I will either find a way or make one
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