TC drop or shims for a 3" lift
#1
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Year: 1994
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TC drop or shims for a 3" lift
As you may have already seen I just installed a 3" lift. The rear is currently around 4"s (is an AAL so I am hoping it will settle some?). Anyway, when I first went on a test drive the driveline was binding so bad I could barely go over 5 mph. Drove around the block and went home and installed a homemade TC drop which seemed to have masked the problem.
My XJ is a 94 with an auto, NP242, and a 8.25 rear.
I was under the impression that with older XJ's TC drops are not usually necessary with minimal lift?
You think I could shim the rear end and pull the TC drop? I dont really like running TC drops , however I dont want to buy the shims and install and end up back where I started.
Any ideas?
My XJ is a 94 with an auto, NP242, and a 8.25 rear.
I was under the impression that with older XJ's TC drops are not usually necessary with minimal lift?
You think I could shim the rear end and pull the TC drop? I dont really like running TC drops , however I dont want to buy the shims and install and end up back where I started.
Any ideas?
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I am not sure I was under the impression that you wouldn't need anything for a 3in lift with a 242 atleast both mine havnt needed anything. Sorry I got no help I would recheck all your pinion angles and make sure you are correct on them may need to unbolt the U-bolts and adjust your axle some.
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Year: 1992
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Driveline bind on a 94 XJ with a 3" lift you have a problem with a u-joint or something. The 96 and later XJ's with the external slip t-case are known for binding. Shim the rear axle, if you plan on wheeling it I would install a SYE. My 92 has a 242 and 8.25 and I had a slight vib when I lifted mine 6"
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I would have to agree with the guys. If you have binding from a 3" lift, you have a U-joint going bad or something, Bro. Although you did say that the rear looked at 4" higher. With a 4.5" lift kit that I bought. It came with a 1" TC drop kit and 6 degree axle shims. So, if you HB TC drop made the problem go almost all away. I'd still get like a 4 degree shim kit for the rear. That should make the vibes go away comepletely. Shims are pretty inexpensive and they will save your U-joints and your sanity. Vibes suck!!
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put a bunch of weight in the back to help the leafs settle more and see if it still binds when it lowers a bit, or grease your ds. but as for shims or tcase drop, go with shims. tcase drops IMO negate the entire lift process. shims dont really hurt anything, just use steel ones, the aluminum ones will break.
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OK I'm going to contradict every one
do not shim your axle it will change your pinion angle and make your drive line vibrate
you have the 8.25 and the pinion is lower than the D35 thats why you are getting drive line bind
if you don't want the TC drop you can
1 get a SYE
2 get a high angle yoke + a small DS shim at the axle
3 get a CV DS made and you will need to shim pinion angle up for this for proper harmonics
do not shim your axle it will change your pinion angle and make your drive line vibrate
you have the 8.25 and the pinion is lower than the D35 thats why you are getting drive line bind
if you don't want the TC drop you can
1 get a SYE
2 get a high angle yoke + a small DS shim at the axle
3 get a CV DS made and you will need to shim pinion angle up for this for proper harmonics
Last edited by mike37; 02-04-2009 at 01:56 PM.
#10
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Year: 1994
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So to make life easier do you think it would be pointless to install shims and pull the TC drop? Do you think I will still have some binding?
When the lift was done I could tell that the driveline looked like it would have an issue.
Here are some photos, didnt take any before the t-case drop.
When the lift was done I could tell that the driveline looked like it would have an issue.
Here are some photos, didnt take any before the t-case drop.
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Year: 1994
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I am not sure I was under the impression that you wouldn't need anything for a 3in lift with a 242 atleast both mine havnt needed anything. Sorry I got no help I would recheck all your pinion angles and make sure you are correct on them may need to unbolt the U-bolts and adjust your axle some.
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