Rear Problems?
Thread Starter
Race Director
Joined: Oct 2004
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From: Virginia Bch VA
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St. Jude Donor '06
Rear Problems?
No not this rear, the 2005 MN6 Z51 rear?
I’ve heard that the 2005 C6 rears are the weak link in the drive train. The fix is to convert a C5 rear. Does anyone have experience with this problem?
Melting Slicks
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From: NJ..."the way I saw it, everyone takes a beating sometimes."
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From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
The center section of the C5 rear diff has more metal by virtue of the fact that it is where the mount attaches to the diff case. This is half the story; the C6 rear is supported by two arms that prevent the case from being able to rock left to right as the torque from the driveline twists. The pinion wants to walk up the ring and the two halves of the case are torn in a wishbone fasion. All the hardened internals in the world will not keep a weak case from cracking.
Fixes for the problem can be any or a combo of:
A side mount that absorbs the twisting motion.
A stronger case (material or thickness)
Additional metal at the fatigue points
A center mount that rocks back and forth
Fixes for the problem can be any or a combo of:
A side mount that absorbs the twisting motion.
A stronger case (material or thickness)
Additional metal at the fatigue points
A center mount that rocks back and forth
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The center section of the C5 rear diff has more metal by virtue of the fact that it is where the mount attaches to the diff case. This is half the story; the C6 rear is supported by two arms that prevent the case from being able to rock left to right as the torque from the driveline twists. The pinion wants to walk up the ring and the two halves of the case are torn in a wishbone fasion. All the hardened internals in the world will not keep a weak case from cracking.
Fixes for the problem can be any or a combo of:
A side mount that absorbs the twisting motion.
A stronger case (material or thickness)
Additional metal at the fatigue points
A center mount that rocks back and forth
Fixes for the problem can be any or a combo of:
A side mount that absorbs the twisting motion.
A stronger case (material or thickness)
Additional metal at the fatigue points
A center mount that rocks back and forth
Thread Starter
Race Director
Joined: Oct 2004
Posts: 10,516
Likes: 2
From: Virginia Bch VA
Cruise-In VI Veteran
Cruise-In VII Veteran
St. Jude Donor '06