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Old 04-04-2012, 08:18 PM   #1
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Pro Comp 4" Lift Sagging

I noticed my LJ is sagging pretty bad in the back. It has a pro comp stage I 4" lift on it. If I'm not mistaken the coil height on a 4" lift should be around 16" in the front and 12" in the back. The front is about right, but the back is measuring around 8.25" and the shocks seem to have taken a serious beating in the back. What might my problem be? Crappy lift? What do I need to do about it?

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Old 04-04-2012, 08:22 PM   #2
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Engine torque causes the right-rear spring and shock to sag and wear more quickly, my right-rear spring is sagging and needs to be replaced as well.

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Old 04-04-2012, 08:25 PM   #3
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How often should this happen? And is there any shock/spring combo you would recommend?
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Old 04-04-2012, 11:29 PM   #4
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How often should this happen? And is there any shock/spring combo you would recommend?
I dunno of any spring/shock combo that can totally resist that problem. I don't say this about many of their parts but ProComp's springs are actually very good quality.
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Old 04-05-2012, 01:16 AM   #5
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I recommend replacing gem with old man emu shocks and coils, I have them on my jeep and I love it I had a pro comp lift as well and decided to redo my entire suspension plus other stuff as well the ome springs are not the same height on my jeep my taller rear spring is on the passenger side due to the torque and the taller front spring is on the driver side this way the jeep sits level all around from the weight of the driver and the torque of the engine it rides excellent! I you don't want to replace all this you could add some coil spacers to the rear to level it out
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Old 04-05-2012, 06:27 AM   #6
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i have the pro comp 4" lift to but mine is sagging all the way around. i look like i only have 2" of lift. i was wondering what ppls recommendations for springs and shocks were also. One of my buddies made the suggestion of coil spacers but i feel like that just painting over a rust spot and not fixing it

Thanks, shane
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Old 04-05-2012, 07:08 PM   #7
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I've been looking around and I can't find any old man emu coils that work for a 4" lift. Any other brands worth recommending?

Thanks,
Ben
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Old 04-05-2012, 07:12 PM   #8
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Any other brands worth recommending?

Thanks,
Ben
Currie. Currie Enterprises - Custom Rearends, Jeep/Off-road Parts, Crate Rearends, 4x4 Rearends It'd be tough to find better quality anything than what Currie offers.
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Old 04-05-2012, 07:59 PM   #9
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Not to high jack a thread, but I find myself remembering when we used to think that torque sag looked cool . Those were the days !!

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