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-   -   U Joint Replacement (http://www.jeepforum.com/forum/f19/u-joint-replacement-246974/)

UTmike 03-07-2006 11:51 PM

U Joint Replacement
 
My U-joint has been clicking and I want to replace it. i was wondering if anyone knows where i can find a write-up on replacing one. also, where's a good place to buy one. it doesn't need to be a great one, as my offroading is limited to weekends and nothing too serious. thanks for any help.

Hokie_YJ 03-08-2006 12:25 AM

Which U-Joint is it?

got_4_lo 03-08-2006 12:38 AM

stu-offroad.com

UTmike 03-08-2006 08:20 AM

it's the rear one that's going out

Hokie_YJ 03-08-2006 11:12 AM

Quote:

Originally Posted by UTmike
it's the rear one that's going out

It's pretty easy to change, just unbolt the straps on the pinion and driveshaft. Give it a light tap with a rubber hammer (if it doesn't come loose easily). Then put your new U-joint together, be sure to grease it, and out it back together. You'll need a pair of snap ring, or needle nose pliers. And I think the bolts on the straps are 5/16.

If you don't do much heavy wheeling, you could just go for a U-joint from Auto Zone, Advance, Pepboys, etc. I'd just get their highest quality one they have.

walkingstick 08-27-2007 09:08 AM

Wheel U Joint Replacement
 
I have a similar question. I'm looking for a step-by-step on how to replace the U Joints that connect the front wheels to the front axle on a TJ. It doesn't look terribly complicated, but it'd be nice to see how someone else has done it. I've found ones that connect the drive shaft to the front differential, but none that talk about the two wheel u joints (one on each side).

Wheelin98TJ 08-27-2007 09:30 AM

Here's a write-up for replacing an axle u-joint:

http://www.stu-offroad.com/axle/ujoint1/u-joint-1.htm


And here's a write-up for replacing a driveshaft u-joint:

http://www.stu-offroad.com/axle/ujoint2/ujoint-1.htm

nyoffroad 09-13-2007 09:15 PM

Bringing this one back to life. Anyway just a quick question for UTmike. I think my u joint on the rear drive shaft is going as well but im not sure, to be honest I just started doing burn outs with it :2thumbsup: and now I get a clicking noise in 1st and 2nd gear. It only happens if I let the rpms drop down or if I really get on her. Does this sound anything like yours? Any help would be appreciated

bblhead 09-16-2007 07:13 PM

I don't really want to Hijack the OP's question, but I would rather do that than to get blasted for not using the search!

I used Alldatadiy.com and they list 3 different part numbers to replace 5 different U-joints.

What I am confused about is the proper size. What is the correct size or does it matter. 3 5/8" or 3 7/32". My concern is that numerous part sites list the same part will work in all of the locations.

Could someone please clear the mud on this? I need to silence the sparrows.

Thanks,

Ben :cheers2:

ESSDEEKAY 05-01-2008 09:23 AM

Ok, my 02 TJ is making the clunking sound and is now vibrating pretty badly around 55mph when i hit a bump. I am no expert but everyone i talk to that has a jeep or once had one has told me that they had the same problem and it was the U-Joint. so i am going to check it, but i need to know some obvious signs that it is bad. can anyone help me with that.

also i am not a mechanic but i am pretty handy with things is this something that i can do on my own. i would like to do it, but i need to know the risks of doing it myself and potentially killing something.

lobukjeep 05-23-2008 04:55 AM

Put the jeep in nuetral and chock the wheels.Please chock the wheels.Don't run yourself over.Climb underneath.Grab pinion yoke in one(rear u joint) hand and driveshaft in the other hand(you want the u-joint in between your two hands) and give it a twist(opposite ways).Basically your trying to be superman and wring the u-joint in half with your bare hands.If your getting vibration in you driveline chances are it's bad enough to notice right away.Look for rust by your u-joint cap.A sure indicator that it's trash and all the needle bearings are ground up and falling out.Do the same for all u-joints.Oh ,and the clunking sound is the u-joint moving inside the cap.Trust me you will find it immeadiately.Get it fixed or your gonna spit the driveshaft out soon.

otisdog 05-25-2008 08:43 AM

Quote:

Originally Posted by bblhead (Post 4221718)
I don't really want to Hijack the OP's question, but I would rather do that than to get blasted for not using the search!

I used Alldatadiy.com and they list 3 different part numbers to replace 5 different U-joints.

What I am confused about is the proper size. What is the correct size or does it matter. 3 5/8" or 3 7/32". My concern is that numerous part sites list the same part will work in all of the locations.

Could someone please clear the mud on this? I need to silence the sparrows.

Thanks,

Ben :cheers2:

For driveshafts in non-Rubi TJ's you need Spicer 153-X u-joints [ 1310 ]
For the front axles you need 760-X - this is the aftermarket Spicer that replaces and is a bit stronger than the 297-X that came stock. Either will work.
Jim

krawler510 02-13-2010 05:35 PM

So, I have a bad U joint on my rear drive shaft. Took the shaft out, pulled the snap rings off and can not press the joint out. I tried with a hammer first and then rented a ball joint press and have it cranked as tight as I can and still nothing. I tried tapping it while under pressure. Haven't tried heat yet because I can't even get to my shed for the torch(too much snow).

Any suggestions?

mowjoecj 02-13-2010 06:55 PM

I had the same trouble with my axle u joints. I was told to hold the joint in a vise and hit the ears of the shaft, not the caps. When one cap starts to pop thru, grab the vise grips and twist the cap off. Rotate it and do it again. It worked. I couldn't believe how easy it was with that trick. and I spent almost three hours trying to do it with a press. go figure

jdhallissey 02-15-2010 12:00 AM

Take the snap ring out. Grab a 3/4" socket put it on the cap and hit it with a hammer until the cap slides out. Then pull the u-joint out and then tap the other cap thru. Do the same to install it. You don't need any special tools. You don't even need a vise. BTW learn to do it this way because if you break on a trail this is most likely the way your changing it.


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