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DiscoWeb Bulletin Board » Message Archives » 2003 Archives - Discovery Technical » Archive through July 21, 2003 » How do you know you have a bad U joint?? « Previous Next »

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Brad Noviski (Bradnoviski)
Member
Username: Bradnoviski

Post Number: 71
Registered: 02-2003
Posted on Thursday, July 17, 2003 - 06:16 pm:   Edit Post Delete Post Print Post

The front shaft on my D1, has some looseness to it. I can grab the shaft & the joints smoot slightly. Is there supose to be any play in the joint? If not, then I will need new u joints or upgrade the shaft.
 

Erik G. Burrows (Erik)
Member
Username: Erik

Post Number: 245
Registered: 04-2002
Posted on Thursday, July 17, 2003 - 07:46 pm:   Edit Post Delete Post Print Post

Look to see what's moving. Is the whole shaft, and all it's parts moving? If so, what you're seeing is just play in the t-case and diff gears. If the main shaft moves, but one or both of the flanges do not, then it's the U-joints or slip joint.
 

Brad Noviski (Bradnoviski)
Member
Username: Bradnoviski

Post Number: 73
Registered: 02-2003
Posted on Friday, July 18, 2003 - 07:57 am:   Edit Post Delete Post Print Post

looks like i have bad joints. who has the best deal on u-joints? Maybe I should consider an upgrade, but I am not sure it the OME HD shocks and springs are to blame or if they just made an existing condition noticable?

 

Justin Day (Polytropoi61)
Member
Username: Polytropoi61

Post Number: 47
Registered: 08-2002
Posted on Friday, July 18, 2003 - 11:45 am:   Edit Post Delete Post Print Post

I noticed that my U joint was bad when me and 4 friends were stranded on the side of the road late on saturday night on the way to do some camping....
Even after it blew up I had a local driveline shop fit a replacement UJOINT in for about 60$.
The local guys rock!
best of luck
 

Peter J Blatt (Peteb)
Member
Username: Peteb

Post Number: 186
Registered: 10-2002
Posted on Friday, July 18, 2003 - 01:33 pm:   Edit Post Delete Post Print Post

I've gotten them from my local napa.
Peter
 

Bill Bettridge (Billb)
Dweb Lounge Member
Username: Billb

Post Number: 859
Registered: 02-2002
Posted on Friday, July 18, 2003 - 03:06 pm:   Edit Post Delete Post Print Post

Napa...spicer...etc - U-joint is a common size.

Any driveline shop can replace it, should be about $10-15 + price of joint. Spicer joint will be more (worth it in my opinion)

No need for a new DS with your setup - just new joints. If they haven't been done before, it'd probably be a good idea to do both in front and rear shafts.

Bill
 

Brad Noviski (Bradnoviski)
Member
Username: Bradnoviski

Post Number: 74
Registered: 02-2003
Posted on Friday, July 18, 2003 - 04:07 pm:   Edit Post Delete Post Print Post

I was planning on doing the job my self. Is that a bad idea? Is there any special tools required? I read my shop manual and it seams straight forward.

Peter, do you have a Napa part #? And much were they

brad
 

gp (Garrett)
Senior Member
Username: Garrett

Post Number: 2186
Registered: 10-2001
Posted on Saturday, July 19, 2003 - 08:35 am:   Edit Post Delete Post Print Post

they are about $25, but make sure you use a short grease fitting. some off the ones supplied are too long and will snap of creating another pain in your ass.
 

Bill Bettridge (Billb)
Dweb Lounge Member
Username: Billb

Post Number: 861
Registered: 02-2002
Posted on Saturday, July 19, 2003 - 03:19 pm:   Edit Post Delete Post Print Post

Brad - you cdan do it yourself with the tried and true vise and socket method - it's just a pain, To me, it's worth a couple bucks to have it done.

If you get the spicer joints - they are end cap lubed and easier to get to - though also vulnerable to damage, Everythings a tradeoff.

Good luck,
Bill

PS - I think the Napa # is a #344 - but different year Disco's can vary.

Bill
 

Brad Noviski (Bradnoviski)
Member
Username: Bradnoviski

Post Number: 75
Registered: 02-2003
Posted on Sunday, July 20, 2003 - 10:15 am:   Edit Post Delete Post Print Post

Bill

Thanks for the info. What is a spicer joint?

Thanks

Brad
 

thom mathie (Muskyman)
Senior Member
Username: Muskyman

Post Number: 313
Registered: 11-2002
Posted on Sunday, July 20, 2003 - 01:26 pm:   Edit Post Delete Post Print Post

if you have any notion of taking a truck off road you need to become good at changing u-joints

having them fail is common on any brand truck that has been lifted and is running oversized tires.

the reason is that for every degree out of optimim that a u-joint runs it shortens the service life by 10%. add to this the increased load of undergeared axles and you have a job that will need to be done pretty often in the life of your truck.

MM

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