3" rough country lift

Modified FSJ Tech Area
barkleyw
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Joined: Sun Jun 09, 2019 4:21 pm

3" rough country lift

Postby barkleyw » Tue Jun 11, 2019 2:25 pm

Installed the 3" rough country spring lift in my 89 GW - got it all in - sits nice - looks good - level stance - wheels centered.

Rear axle has the factory brackets welded on it with the holes that align with the springs so the positioning of the springs and axle is correct to my knowledge.

I used the the extensions for the stabilizer bars from BJ's and they mounted fine.

Everything looks great - Except - when I went to put the drive shaft back in I am about an inch short after its extended.

Called RC - poor support - from what I can see everything is set but I will need to extend my drive shaft a bit - everything I read says you should not have to do this with just a 3" lift.

thoughts?

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Stuka
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Re: 3" rough country lift

Postby Stuka » Tue Jun 11, 2019 6:45 pm

I have put 6" lifts on without extending the rear shaft. Front typically is what needs work.

Does the rear tire look centered in the wheel well? I have had one friend that when he put his lift on, the centering pin on the springs actually ended up in the hole to the front of where it should actually go. So the axle ended up being farther back than it should.

Also, its possible that the shaft has never had to extend that far, and is just hanging up on a wear spot or something inside. You may have to pull on it some.
1981 J10 AMC 258 with HEI and Weber 32/36 DGEV Carb, T176, NP208, D44/M23 with 4.56 gears and Detroit Locker, 6" lift, 33x12.50 Cooper STT's, BJ's Offroad Rear Dozer Bumper.
2017 JKU Rubicon Lifted and stuff
Pevious Jeeps: 1975 Cherokee, 2008 JK, 2005 KJ, 1989 XJ

barkleyw
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Joined: Sun Jun 09, 2019 4:21 pm

Re: 3" rough country lift

Postby barkleyw » Tue Jun 11, 2019 7:21 pm

ok - dug in a bit deeper - see pics - pulled the driveshaft all the way far enough to see the spline - still need an inch. The differential is pretty much parallel to the ground - almost looks like it should point up a bit towards the transfer case yoke more. The pin is in the hole - see pic. Next..check out the bottom wedge on the leaf spring - is it the wrong way? The thick part of the wedge faces the front of the jeep. It is part of the spring so it may have been put in backwards wherever RC gets them - I think it said Indonesia or something. If I turn that wedge will it bring the angle up and fix my issue? How should that wedge be in there? (The wedge in the spring pack not on the axle plate)

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Last edited by barkleyw on Tue Jun 11, 2019 7:25 pm, edited 1 time in total.

barkleyw
Posts: 11
Joined: Sun Jun 09, 2019 4:21 pm

Re: 3" rough country lift

Postby barkleyw » Tue Jun 11, 2019 7:35 pm

I think I figured it out.....right from rough country - appears the shim or wedge is my issue.....

"Which direction should the shims on my leaf springs face?

On vehicles with leaf springs mounted over the axles, the fat or tall part of the shim should face towards the bumper (i.e. the tall part of the shim on the rear leaf spring should face the rear bumper and vice versa for the front.) On vehicles with the leaf springs mounted under the axle, the fat or tall part of the shim should face towards the center of the vehicle."

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Stuka
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Re: 3" rough country lift

Postby Stuka » Tue Jun 11, 2019 8:15 pm

Your shim are in backwards, as I can see in the photos. That will help some, although not sure if it will help enough.

And, the tire does look a bit far back in the wheel well. Normally Wagoneers have the tire closer to the front fender lip. Its not uncommon to have to trim the bottom corner of the front to fit a larger tire.
1981 J10 AMC 258 with HEI and Weber 32/36 DGEV Carb, T176, NP208, D44/M23 with 4.56 gears and Detroit Locker, 6" lift, 33x12.50 Cooper STT's, BJ's Offroad Rear Dozer Bumper.
2017 JKU Rubicon Lifted and stuff
Pevious Jeeps: 1975 Cherokee, 2008 JK, 2005 KJ, 1989 XJ

barkleyw
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Joined: Sun Jun 09, 2019 4:21 pm

Re: 3" rough country lift

Postby barkleyw » Wed Jun 12, 2019 3:05 am

Thanks Stuka - I will get the wrenching, turn them around and see where I am at. I really enjoy this forum.

irondawg
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Location: Leander, TX

Re: 3" rough country lift

Postby irondawg » Thu Jun 20, 2019 2:21 pm

You know what, I just looked at my rear setup and the fat part is facing the center of the frame. I thought something was wrong because the rear parking brake cables are about 1/2 inch too short and RC said once there's weight on the frame (I'm doing a frame off rebuild right now) the lines will reach. I've got a shot of the parking brake lines to show you what I mean. I'll take some shots of the blocks in a minute.

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1978 Cherokee Chief WT in a thousand pieces
Previous Jeep: 2001 Grand Cherokee

irondawg
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Re: 3" rough country lift

Postby irondawg » Thu Jun 20, 2019 3:02 pm

Here's a shot of the shim. As you can see the fat part is facing the center.

Image

Looks like I've got some wrenching to do as well.

Thanks guys!! You don't know how much I appreciate this forum.
1978 Cherokee Chief WT in a thousand pieces
Previous Jeep: 2001 Grand Cherokee

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ghcoe
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Re: 3" rough country lift

Postby ghcoe » Mon Jul 08, 2019 7:26 pm

Have not done the rear springs before, but when I did my front springs I found the centering pin was not centered in the spring. Not sure if even the factory one was or not, but something to check is if the springs are installed the right way.
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Stuka
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Re: 3" rough country lift

Postby Stuka » Tue Jul 09, 2019 11:25 am

ghcoe wrote:Have not done the rear springs before, but when I did my front springs I found the centering pin was not centered in the spring. Not sure if even the factory one was or not, but something to check is if the springs are installed the right way.


This was factory for 74+ FSJ's. 73 and older Wagoneers had a shorter spring that did use a centered pin.
1981 J10 AMC 258 with HEI and Weber 32/36 DGEV Carb, T176, NP208, D44/M23 with 4.56 gears and Detroit Locker, 6" lift, 33x12.50 Cooper STT's, BJ's Offroad Rear Dozer Bumper.
2017 JKU Rubicon Lifted and stuff
Pevious Jeeps: 1975 Cherokee, 2008 JK, 2005 KJ, 1989 XJ


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