12 Bolt Chevy problem

Jim Kaekel · 08-03-2009, 08:24 AM

Mark is correct. I had similar problems years ago with mine, shims getting damaged, but the Ratech severe duty pinion shim kit #1901 solved the problem. Kit relocates shims between the housing and the race.

Ed Wright · 08-03-2009, 09:22 AM

Guess I have been lucky. I've never had that happen. I think you need to get closer with your pinion depth, but that won't effect the shim problem. I have broken teeth on one ring gear, and found them cracked on another a few weeks back, but my shims have always lived. That's a new one for me.

08-03-2009, 09:22 AM	#2
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: 12 Bolt Chevy problem Guess I have been lucky. I've never had that happen. I think you need to get closer with your pinion depth, but that won't effect the shim problem. I have broken teeth on one ring gear, and found them cracked on another a few weeks back, but my shims have always lived. That's a new one for me. __________________ Ed Wright 4156 SS/JA Last edited by Ed Wright; 08-03-2009 at 05:16 PM. Reason: Spelliing

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08-03-2009, 08:24 AM	#1
Jim Kaekel VIP Member Join Date: Jul 2002 Location: Michigan Posts: 1,229 Likes: 133 Liked 536 Times in 110 Posts	Re: 12 Bolt Chevy problem Mark is correct. I had similar problems years ago with mine, shims getting damaged, but the Ratech severe duty pinion shim kit #1901 solved the problem. Kit relocates shims between the housing and the race. __________________ Jim Kaekel 3836 STK