couple of questions

Ken Haase · 04-01-2008, 02:09 PM

On a 12 bolt diff using a solid spacer instead of a crush sleeve, what is the recommended torque on the pinion nut?

Back-halfing my Malibu.What is the preferred method of attaching sheet metal to frame,other sheet metal, etc.? Welding or rivets? I don't want a rattlely piece of crap. Also, what have ya'll found that works best for sealing joints? Brand names? I was wondering about urethane windshield sealant, any thoughts on that?

Thanks for your help. Ken

Rob Petrie E395 · 04-01-2008, 07:20 PM

When I put new gears in my Moser 12 bolt I use the solid spacer you are speaking of. I do not recall a torque spec in the paper that came with the spacer and shims. What I did is I kept adjusting the number of shims untill I got the pinion bearing preload I was looking for. I tightend it with a impact as you would with a crush sleeve. I can tell you the solid sleeve/shims is the way to go especially if you are setting up a new rear and trying to get the proper pinion depth. It beats the hell out of crushing multiple sleeves while trying to get it just right.

Dave Cook · 04-02-2008, 11:02 AM

Tight as you can get it, then stake the nut/threads.

I used genuine GM seam sealer, kinda messy, but it works well and hangs in there.
The aluminum is riveted in, the steel is spot welded.

04-01-2008, 02:09 PM	#1
Ken Haase Member Join Date: Mar 2007 Posts: 233 Likes: 0 Liked 1 Time in 1 Post	couple of questions On a 12 bolt diff using a solid spacer instead of a crush sleeve, what is the recommended torque on the pinion nut? Back-halfing my Malibu.What is the preferred method of attaching sheet metal to frame,other sheet metal, etc.? Welding or rivets? I don't want a rattlely piece of crap. Also, what have ya'll found that works best for sealing joints? Brand names? I was wondering about urethane windshield sealant, any thoughts on that? Thanks for your help. Ken

04-01-2008, 07:20 PM	#2
Rob Petrie E395 VIP Member Join Date: Dec 2007 Location: Woodlawn IL Posts: 1,092 Likes: 162 Liked 216 Times in 77 Posts	Re: couple of questions When I put new gears in my Moser 12 bolt I use the solid spacer you are speaking of. I do not recall a torque spec in the paper that came with the spacer and shims. What I did is I kept adjusting the number of shims untill I got the pinion bearing preload I was looking for. I tightend it with a impact as you would with a crush sleeve. I can tell you the solid sleeve/shims is the way to go especially if you are setting up a new rear and trying to get the proper pinion depth. It beats the hell out of crushing multiple sleeves while trying to get it just right.

04-02-2008, 11:02 AM	#3
Dave Cook Junior Member Join Date: Sep 2003 Location: Indianapolis Posts: 28 Likes: 0 Liked 0 Times in 0 Posts	Re: couple of questions Tight as you can get it, then stake the nut/threads. I used genuine GM seam sealer, kinda messy, but it works well and hangs in there. The aluminum is riveted in, the steel is spot welded.