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Old 09-06-2006, 12:01 PM
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GM 10-bolt Support Cover Help

Help

I'm upgrading the posi carrier, axles, ring/pinion, etc of my 8.5" 10-bolt this winter. I've seen those housing support covers and stud kits.

What do they do? Do I need one?

Looks like they are about $150. is it worth it?

I have a 72 nova street car with 550 HP BB Chevy and auto trans.

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Old 09-06-2006, 08:12 PM
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not sure if the cover will help. with 550hp. i think i would put my money into a stronger rearend. you could get a 12 bolt or even a 9" ford that would handle the horsepower and not have to worry about breakage. a 10 bolt might last on the street, but put a set of slicks on you vehicle and put it on the drag strip and parts will fly. strange engineering is located in elk grove or moser engineering over in portland indiana.

Last edited by tntracecars; 09-06-2006 at 08:18 PM.
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Old 09-06-2006, 08:27 PM
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Quote:
Originally Posted by tntracecars
not sure if the cover will help. with 550hp. i think i would put my money into a stronger rearend. you could get a 12 bolt or even a 9" ford that would handle the horsepower and not have to worry about breakage. a 10 bolt might last on the street, but put a set of slicks on you vehicle and put it on the drag strip and parts will fly. strange engineering is located in elk grove or moser engineering over in portland indiana.
I understand and appreciate your commentary and for the most part agree with it. I have however referenced about a dozen sources on this subject and about half of them say the beefed up 10-bolt 8.5 inch is sufficient for my street application. the other half say as you do, "get a 12-bolt or ford 9 inch" I am still undecided. Check out this article from Super Chevy Magazine.

http://www.chevyhiperformance.com/te...grade_install/

it talks about guys using the 8.5" 10-bolt and running 8's in the quarter consistently. You have to admit, that's worth thinking about before spending $2400 for the 12-bolt or ford 9 inch upgrade
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Old 09-07-2006, 01:06 PM
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Quote:
Originally Posted by leejoy
Help

I'm upgrading the posi carrier, axles, ring/pinion, etc of my 8.5" 10-bolt this winter. I've seen those housing support covers and stud kits.

What do they do? Do I need one?

Looks like they are about $150. is it worth it?

I have a 72 nova street car with 550 HP BB Chevy and auto trans.
They are supposed reduce ring gear deflection (mines a 12bolt) I decided to give it try because of a heavy car (4200# me in it) 4speed with bbc at about 545hp@6100rpm (if I remember right? have to find dyno sheets) but have not ran with it yet ( still putting car back together) Also from your other post, I too was told to run with c-clips on the street because of leakage of kit. (I have dutchman axles). You could cut the axle housing ends off and weld on the aftermarket ones (moser has them). That would take care of the c-clips.
Hope this helps .
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Old 09-07-2006, 02:19 PM
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Quote:
Originally Posted by 65 Imp SS
They are supposed reduce ring gear deflection (mines a 12bolt) I decided to give it try because of a heavy car (4200# me in it) 4speed with bbc at about 545hp@6100rpm (if I remember right? have to find dyno sheets) but have not ran with it yet ( still putting car back together) Also from your other post, I too was told to run with c-clips on the street because of leakage of kit. (I have dutchman axles). You could cut the axle housing ends off and weld on the aftermarket ones (moser has them). That would take care of the c-clips.
Hope this helps .
thanks buddy. I am considering what you said. I too am not sure yet about the C-Clip eliminators. I heard they leak also.
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Old 09-07-2006, 09:29 PM
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I forgot to mention even though I have the low profile cover I still had to make more clearence for the panhard bar.
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Old 09-07-2006, 10:27 PM
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Quote:
Originally Posted by 65 Imp SS
I forgot to mention even though I have the low profile cover I still had to make more clearence for the panhard bar.
send me some pics so I know what the heck you're talking about

lwallace@pcsoc.com
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Old 09-10-2006, 11:14 PM
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There's no Panhard bar on a Nova. Some cars use one to keep the body centered over the rear axle, but the leaf springs do that on a Nova.
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