Advice on suspension setup? -
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post #1 of 3 Old 10-23-2013, 12:46 PM Thread Starter
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1995 YJ Wrangler 
Join Date: Aug 2013
Location: Montreal
Posts: 107
Advice on suspension setup?

Hey y'all, I have a 4" lift with a 1" t-case skidplate drop, running 33" tires. Haven't been on the road with it cause I'm repairing the rear shackle to frame mounts (it's a real rust bucket lol). Thing is, I'm looking into getting new shackles and found some with greasable bolts for 25$ a pair. Thing is, they are boomrangs with 1" lift. My setup is pretty common, so I'd like to know if someone runs them and if youre having vibrations or anything? Any downside to it? Will it decrease MPG so much it's not worth it?


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post #2 of 3 Old 10-23-2013, 05:26 PM
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Shackles won't affect had mileage. Did you do a slip yoke eliminator kit on your tcase when you lifted? If not, your first drive might be your last until you do put one on. I did a 2.5" lift with 5/8" boomerang shackles and had to lower my tcase an inch to make it driveable and it still has a supper light vibe at 40mph. I am going to swap my springs around though because I put them on the wrong ends of the jeep (front to rear) so I am hoping swapping eliminates the vibe. If not, I am going to have to remove the bommerangs and try out the old stock shackles and if that doesn't work I will just have to get an sye kit.

I don't feel like working on anything at this time so i sold my yj.
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post #3 of 3 Old 10-24-2013, 05:34 AM Thread Starter
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1995 YJ Wrangler 
Join Date: Aug 2013
Location: Montreal
Posts: 107
Maybe your vibs are just because the springs you got in the rear are meant for the front and don't have shims to keep the axle in a relatively straight angle.. I'm not SYE either, but the t-case is dropped with a 1" bar that came with the RC 4" lift kit I have on. The rest is all stock, and the rear is a D35c with 4:10 straight from factory. I suspect even the rust is from factory lol.
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