Preventing Rearend Noise
Thread Starter
Racer
Joined: Mar 2001
Posts: 438
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From: Houston, Texas
Preventing Rearend Noise
No jokes please! :bb
I had to tear down my differential to restore the case and clean out the parts from contaminated oil. While I was in there I changed out the cluches. What is the key to putting it all back so that it doesn't whine??
I had to tear down my differential to restore the case and clean out the parts from contaminated oil. While I was in there I changed out the cluches. What is the key to putting it all back so that it doesn't whine??
Melting Slicks
Joined: Aug 2001
Posts: 2,501
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Re: Preventing Rearend Noise (noskillz)
No jokes please! :bb
There was a thread on C3 forum about rebuilding differentials (with good pictures) not long ago but, when I searched, I couldn't find it. Maybe someone else'll have better luck.
Safety Car
Joined: Jul 2001
Posts: 4,456
Likes: 6
From: Spicewood, Texas, USA TX-Texas
Re: Preventing Rearend Noise (noskillz)
Noskillz, positraction differentials are no different from the regular differentials...the pinion has to be precisely shimmed to obtain an acceptable gear mesh pattern with the ring gear.
It is done using a dial indicator and colored marking material on the gears to reveal the gear mesh pattern. It is half art and half science, and best left to experienced professionals. A chimp could probably be trained to do it with enough time, experience, and bananas, but at the end of it, he would have the experience and you wouldn't. This from a dyed-in-the-wool DYI guy.
It is done using a dial indicator and colored marking material on the gears to reveal the gear mesh pattern. It is half art and half science, and best left to experienced professionals. A chimp could probably be trained to do it with enough time, experience, and bananas, but at the end of it, he would have the experience and you wouldn't. This from a dyed-in-the-wool DYI guy.
Burning Brakes
Joined: Apr 2001
Posts: 889
Likes: 0
From: Victoria BC
Re: Preventing Rearend Noise (Chuck Sangerhausen)
Oh is this open to some really good ones. I use Red Line diff additive in all the diffs I do, a good investment of about $13-15 CDN or 3 cents US. Heck Mac has it in his rear end :D
Thread Starter
Racer
Joined: Mar 2001
Posts: 438
Likes: 0
From: Houston, Texas
Safety Car
Joined: Jul 2001
Posts: 4,456
Likes: 6
From: Spicewood, Texas, USA TX-Texas
Re: (noskillz)
I think I found the link.
Although proper ring & pinion setup can be accomplished at home, I really recommend having a professional do the job. However, if a person really insists on trying it (and that is really the only way to learn), then here is some information that should be helpful.
I use Red Line diff additive in all the diffs I do...
:jester :cheers: :smash: :jester
[Modified by Chuck Sangerhausen, 8:02 AM 3/9/2002]
Thread Starter
Racer
Joined: Mar 2001
Posts: 438
Likes: 0
From: Houston, Texas
Re: (noskillz) (Chuck Sangerhausen)
Well, it looks like my clutch packs were to loose. Even with new disks the pinion play is still around .010 ~ well over the .001 to .012 recommended on the overhaul manual. I have heard that the yoke play from this can cause chatter around corners. Thats what I had, really bad chatter around corners. (And no, it wasn't cause my wife was in the car with me :rolleyes: )
The rebuild kit I got from Zip has all kinds of shims for the pinion, but none for the clutch packs. Well, time to order and wait a week...
The rebuild kit I got from Zip has all kinds of shims for the pinion, but none for the clutch packs. Well, time to order and wait a week...
