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Old 08-27-2012, 11:58 AM
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Default u-joints

Hey XJ's, we need some help. My friend has been busting u-joints left and right. We've already replaced them 3 times in almost every situation. He has a 93 cherokee with a RC 4.5 lift on it with stock D35 and 3.83 gears with 33 BF. If you guys have knowledge to share we take it.
Old 08-27-2012, 12:12 PM
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Which u joint is busting?
Old 08-27-2012, 12:19 PM
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Is he locked in the front? And does he have a transfer case drop?
Old 08-27-2012, 12:20 PM
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I'm assuming you're talking about the front axle ujoints. I'd upgrade to either chromos with the larger ujoint or see if you can find a set of stock shafts off a newer cherokee with the larger ujoint.
Or tell him to take it easy on the skinny.

Or if they are popping caps and not technically "breaking" tell him to get the caps spot welded on or again, take it easy on the skinny.
Old 08-27-2012, 12:43 PM
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Stock stuff breaks when wheeled on oversize tires.

A good cheap upgrade is to use the larger 5-760x shafts and u joints from a newer or abs equipped xj and grind out the shafts to use full circle clips.

ALWAYS USE SPICER U JOINTS. Anything else from the parts store is crap.

Last edited by ktmracer419; 08-27-2012 at 12:48 PM.
Old 08-27-2012, 01:03 PM
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Originally Posted by ktmracer419
Stock stuff breaks when wheeled on oversize tires.

A good cheap upgrade is to use the larger 5-760x shafts and u joints from a newer or abs equipped xj and grind out the shafts to use full circle clips.

ALWAYS USE SPICER U JOINTS. Anything else from the parts store is crap.
X2! I went to tj big joint shafts and c clipped them with spicer non greasable ujoints and have had good luck so far with 33 tsl's. I destroyed them small joint shafts
Old 08-30-2012, 11:29 AM
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He doesn't have any lockers our posi unit and the u joint that is breaking is the one closer to the rear diff. Could we use a bigger drive shaft and u joint without changing the rear yoke?
Old 08-30-2012, 11:37 AM
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rearmost u joint?

what is your pinion angle set at? what leaf springs? blocks?

chances are you have some axle wrap going on.

and always use spicer u joints.
Old 08-30-2012, 12:46 PM
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Sounds like someone really needs to address the root cause.

Pinion angle is FUBAR.

Any bets?
Old 08-30-2012, 12:51 PM
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Originally Posted by SeriousOffroad
Sounds like someone really needs to address the root cause.

Pinion angle is FUBAR.

Any bets?
Yup. I was going through one back there every 8-10 months before my SYE on my old xj...
Old 08-30-2012, 06:01 PM
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Anyone know where to get a LF spicer u-joint on the cheap? Even on rockauto, the ones that say spicer are $43.

Thanks!
Old 08-30-2012, 07:31 PM
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Originally Posted by theangler
Anyone know where to get a LF spicer u-joint on the cheap? Even on rockauto, the ones that say spicer are $43.

Thanks!
That's about the cheapest you can get, I got mine local to me for 39.99 plus tax from my buddy he owns a offroad Fab shop.
Old 08-31-2012, 09:46 AM
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Try these guys. They had the best prices I could find.
theujointstore.com
Old 09-04-2012, 05:32 PM
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Is this the one I need for the LF axle shaft u joint?

http://www.theujointstore.com/55261.html
Old 09-04-2012, 06:09 PM
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Also go to a yoke that uses u bolts instead of those crappy straps. Most likely those straps aren't holding the caps in tight and they are working loose until he throws a cap and tears up the u joint.


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