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Unread 12-31-2010, 04:35 PM   #1
DavidWebb
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Help with rear driveshaft...u-joints

I went to change my rear universals today. Stopped last night and bought the new one's. Pulled the shaft out and noticed the rear u-joint looked odd. Kept looking it over and found that it is longer across the bolt on side than the press in side, by a 1/4". Bastard Joint!!!!!.. Went back to Autozone to see if they could match it up and was told they dont carry that kind. Same for Advance and O'Reilly. Now, either Jeep decided to play a mean trick or someone somewhere down the line changed the yoke or the entire rear-end. What do I do now??????

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1999 Cherokee 8in lift, spartan locker in front, trac locker rear, sittin on 35in Mud Rovers.
2011 Wrangler V6 Auto, 4in of lift, 35in M/T MTZ's on 17in Incubus rims. Not many upgrades, YET!!!! OlllllO
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Unread 12-31-2010, 04:39 PM   #2
Joe Dillard
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Sounds like you have the 1330 at the pinion yoke side, but 1310 at the drive shaft side.

A combo 1330/1310 ujoint can be used to solve the issue.

That, or you've gotta change one of the mount sides to match the other.
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Unread 12-31-2010, 04:41 PM   #3
Joe Dillard
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One of these should work if I'm understanding you correctly:

http://www.dennysdriveshaft.com/p464...reaseable.html
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Unread 12-31-2010, 04:47 PM   #4
DavidWebb
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yep...thats it. But I need it for a ride Sunday.
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1999 Cherokee 8in lift, spartan locker in front, trac locker rear, sittin on 35in Mud Rovers.
2011 Wrangler V6 Auto, 4in of lift, 35in M/T MTZ's on 17in Incubus rims. Not many upgrades, YET!!!! OlllllO
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Unread 12-31-2010, 04:49 PM   #5
Joe Dillard
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Ask some of your trail buddies if they carry a spare (the one that you need).

I carry ~8 ujoints as spares for different applications.
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Unread 12-31-2010, 04:57 PM   #6
jeep108
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Quote:
Originally Posted by Joe Dillard View Post
Sounds like you have the 1330 at the pinion yoke side, but 1310 at the drive shaft side.

A combo 1330/1310 ujoint can be used to solve the issue.

That, or you've gotta change one of the mount sides to match the other.
Is this a normal occurrence? I was going to change mine but want to make sure I get the right parts. Anything I can look for or do I just have to pull the u-joint to find out?
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[QUOTE=Opihi59;14523519]Welcome to the forum.
If you are a mechanical neophyte and have to repetitively intone the mantra of "lefty loosey," are a mouth breather and only own a hammer, it will be more of a challenge. [/QUOTE]
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Unread 12-31-2010, 05:10 PM   #7
Joe Dillard
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It's not really "normal" per say, but it does occur when somebody tosses a monkey wrench into things.

I don't think that the factory ever installed a combo joint, but I could be wrong.

The later year(s) of the YJ came with 1330 ujoints at the axle end, while earlier years were solely 1310's.

I forget the exact specs, but you can measure both cross sections of the ujoint at the tcase end, and compare those measurements to those of the rear ujoint to see if there's a mismatch. The 1330 is slightly wider.
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Unread 12-31-2010, 05:13 PM   #8
DavidWebb
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Quote:
Originally Posted by jeep108 View Post
Is this a normal occurrence? I was going to change mine but want to make sure I get the right parts. Anything I can look for or do I just have to pull the u-joint to find out?
the way I found mine out was to put a tape measure to it. It will read 3 1/2" across the driveshaft yoke and almost 4" across the differential yoke. I don't think this is to common. None of the chain auto part stores have it. If it were common, they should.
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1999 Cherokee 8in lift, spartan locker in front, trac locker rear, sittin on 35in Mud Rovers.
2011 Wrangler V6 Auto, 4in of lift, 35in M/T MTZ's on 17in Incubus rims. Not many upgrades, YET!!!! OlllllO
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Unread 12-31-2010, 06:03 PM   #9
jeep108
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Thanks fellas!
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Eph 6:13 -Therefore put on the full armor of God, so that when the day of evil comes, you may be able to stand your ground,


[QUOTE=Opihi59;14523519]Welcome to the forum.
If you are a mechanical neophyte and have to repetitively intone the mantra of "lefty loosey," are a mouth breather and only own a hammer, it will be more of a challenge. [/QUOTE]
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Unread 12-31-2010, 06:40 PM   #10
95 Lowbuck
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My 1995, (1996 spec.) came with the bastard u-joint,
see if your local store has one for a late 1995.
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Unread 12-31-2010, 09:31 PM   #11
DavidWebb
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They checked their inventory and tried to match one up, but could not do it. Asked the same of Advance and O'reilly, and nada there too
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1999 Cherokee 8in lift, spartan locker in front, trac locker rear, sittin on 35in Mud Rovers.
2011 Wrangler V6 Auto, 4in of lift, 35in M/T MTZ's on 17in Incubus rims. Not many upgrades, YET!!!! OlllllO
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Unread 01-01-2011, 05:54 AM   #12
Mark05059
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here you go... part numbers for the dummies at the parts stores that cant look in their books

http://www.jeepforum.com/forum/f9/13...t-part-618095/
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Unread 01-03-2011, 06:01 PM   #13
DavidWebb
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Got the new joints in tonight. took out 90% of the roaring and vibration out of it. still has a vibration at 75mph. is this normal with a locker installed up front???
__________________
1999 Cherokee 8in lift, spartan locker in front, trac locker rear, sittin on 35in Mud Rovers.
2011 Wrangler V6 Auto, 4in of lift, 35in M/T MTZ's on 17in Incubus rims. Not many upgrades, YET!!!! OlllllO
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Unread 01-03-2011, 07:12 PM   #14
95 Lowbuck
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First, did you get your front D.S. checked and balanced.
It must be straight, concentric, and the splines in good shape.
If all that looks good check the U-joint angles.
They must be the same at both ends if using the stock D.S.
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Unread 01-03-2011, 07:29 PM   #15
DavidWebb
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Quote:
Originally Posted by 95 Lowbuck View Post
First, did you get your front D.S. checked and balanced.
It must be straight, concentric, and the splines in good shape.
If all that looks good check the U-joint angles.
They must be the same at both ends if using the stock D.S.
the front shaft was put in new a month ago, it's straight and balanced and is bigger and heavier than stock, new u-joints installed too. The angles are a little funky, instead of being slanted up 4 degree fron diff to TC, it's actually slanted downward about 2 degrees to the TC because of the TC drop kit and the sagging in the front springs. I'm assuming that's the reason and in a couple of weeks I will be replacing the springs all the way around.
__________________
1999 Cherokee 8in lift, spartan locker in front, trac locker rear, sittin on 35in Mud Rovers.
2011 Wrangler V6 Auto, 4in of lift, 35in M/T MTZ's on 17in Incubus rims. Not many upgrades, YET!!!! OlllllO
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