U-joints
Thread Starter
Intermediate
Joined: Dec 2003
Posts: 28
Likes: 0
From: Kingston ontario
U-joints
Sounds like I have replace some u-joints out back.
I'm getting a bit of a clunk from back there, when i put it in drive sometimes, or when it downshifts back into 1st when i'm in D.
Which usually goes first? The driveshaft? Or the half-shafts?
I haven't had a chance to get under there and look yet.
I hope it's the half shafts, cuz they look like they're a bit easier to do.
I'm getting a bit of a clunk from back there, when i put it in drive sometimes, or when it downshifts back into 1st when i'm in D.
Which usually goes first? The driveshaft? Or the half-shafts?
I haven't had a chance to get under there and look yet.
I hope it's the half shafts, cuz they look like they're a bit easier to do.
Team Owner
Joined: Sep 2001
Posts: 62,155
Likes: 1,731
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Passenger halfshaft usually goes first, but you should replace all of them if you can.
You need Spicer Cold-Forged joints with no zerk fittings, get them from Tom's Differentials.
You need Spicer Cold-Forged joints with no zerk fittings, get them from Tom's Differentials.
Former Vendor
Joined: Jun 2001
Posts: 7,204
Likes: 6
From: St Marys PA
Originally Posted by sbzer
from the sound of it, they seem bullit-proof!
cryo treated the last set and they have held up for about 50 runs now. Knock on wood. Going to the trakc I ALWAYS break at tomorrow. So I will be holding my breath.
Pro
Joined: Oct 2003
Posts: 506
Likes: 12
From: Savannah GA
You might try a drain a refil of the rear end. Sometimes new posi additive helps it.
A sure sign of u-joint problem is high speed vibration you can't seem to get rid of.
When you look under it check for any red looking dust around the u-joint caps. That's a sure sign they are shot.
Unless you are really hard on it the driveshaft joints hardly ever wear out since they don't move up and down.
A sure sign of u-joint problem is high speed vibration you can't seem to get rid of.
When you look under it check for any red looking dust around the u-joint caps. That's a sure sign they are shot.
Unless you are really hard on it the driveshaft joints hardly ever wear out since they don't move up and down.
Thread Starter
Intermediate
Joined: Dec 2003
Posts: 28
Likes: 0
From: Kingston ontario
Originally Posted by ski_dwn_it
Not really I went through about 3 of them this year. Crush the roller bearings into powder!
cryo treated the last set and they have held up for about 50 runs now. Knock on wood. Going to the trakc I ALWAYS break at tomorrow. So I will be holding my breath.
cryo treated the last set and they have held up for about 50 runs now. Knock on wood. Going to the trakc I ALWAYS break at tomorrow. So I will be holding my breath.
impressive!
Thread Starter
Intermediate
Joined: Dec 2003
Posts: 28
Likes: 0
From: Kingston ontario
Originally Posted by jsinga
You might try a drain a refil of the rear end. Sometimes new posi additive helps it.
A sure sign of u-joint problem is high speed vibration you can't seem to get rid of.
When you look under it check for any red looking dust around the u-joint caps. That's a sure sign they are shot.
Unless you are really hard on it the driveshaft joints hardly ever wear out since they don't move up and down.
A sure sign of u-joint problem is high speed vibration you can't seem to get rid of.
When you look under it check for any red looking dust around the u-joint caps. That's a sure sign they are shot.
Unless you are really hard on it the driveshaft joints hardly ever wear out since they don't move up and down.
it does make sense that it shouldn't. i was wondering why a u-joint is even needed there.
Melting Slicks
Joined: Oct 2004
Posts: 2,510
Likes: 4
From: Austin Texas
Originally Posted by sbzer
i was hoping someone would tell me that the driveshaft u-joint rarely wears out.
it does make sense that it shouldn't. i was wondering why a u-joint is even needed there.
it does make sense that it shouldn't. i was wondering why a u-joint is even needed there.
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Burning Brakes
Joined: Jun 2002
Posts: 1,159
Likes: 0
From: royal palm beach florida
Originally Posted by vader86
Passenger halfshaft usually goes first, but you should replace all of them if you can.
You need Spicer Cold-Forged joints with no zerk fittings, get them from Tom's Differentials.
You need Spicer Cold-Forged joints with no zerk fittings, get them from Tom's Differentials.