another 10 bolt story
Thread Starter
Staging Lane
Joined: Jan 2002
Posts: 89
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From: Minnesota
another 10 bolt story Well, Im surprised it lasted as long as it did in my M6, broke a spyder gear off on a lazy 2.0 60 ft. I guess its time for a real rear now. Im running thnder 224 cam, stage 1 heads, ls6 intake. I would like to be able to run 11's all day long with my new rear but have been hearing some all to familiar stories with the moser 12 bolt as I had with my 10 bolt. Realisticly I make about 20 passes a year at the track, and limited street racing. Will I be able to run a 12 bolt with 1.8 to 1.7 60 fts with a stock weight car, and not have to worry about junking another rear, or do I need to go to a 9 inch? Thanks for your insight 
TECH Addict
Joined: Sep 2003
Posts: 2,065
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From: Atlanta, GA
Ask my brother, he's around here. mikeyws6 or something. He's got the ford conversion 8.8 with abs/tcs. As i understand it is far cheaper, and after seeing him drag/race/highway he gives the rear no mercy. 5500 launchs with ET's lol. I think hes replacing his mcleod clutch disc this weekend. I'll ask about the pricing n stuff unless he comes along this thread.
TECH Apprentice
Joined: Aug 2003
Posts: 313
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From: Glenview, Illinois
I think the 12 bold vs the 8.8 is prety close aside from the ability to swap centers, and set mesh on the bench with the ford. I have been hearing of alot of 12 bolts letting go lately and i think the answer lies in the way they are being setup.
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Thread Starter
Staging Lane
Joined: Jan 2002
Posts: 89
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From: Minnesota
To be honest I would consider the 8.8 very seriously. I have seen 9 second mustangs on this rear personally, which I thought was impressive. I did a search on the 8.8 before my original post but was unsuccessful, i just figured that few people were running them. All i need is a rear that I can pull decent 60 ft and run 11's with all day long with a stock weight car. I will be running drag radials for the most part. Whoever has info on the 8.8 , please chime in, Its just another good option for people. Thanks
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Teching In
Joined: Nov 2003
Posts: 26
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MNSS - I have heard alot of stories about people breaking rear ends. I have been very fortunate and not broke mine yet. I have a black 98 SS M6 running 1.60 to 1.55 60' times on Nitto 555 DR and mid to high 11's with zero problems. Just wondering what you thought might have caused your failure. Most of the time when a spider gear breaks it is on a burn-out when one tire stops spinning and the other still spin and then stops and hits the rear very hard at the and of the burn-out. What ET's and MPS are you running? Any guess on HP?
Thread Starter
Staging Lane
Joined: Jan 2002
Posts: 89
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From: Minnesota
Originally Posted by X-RACER
MNSS - I have heard alot of stories about people breaking rear ends. I have been very fortunate and not broke mine yet. I have a black 98 SS M6 running 1.60 to 1.55 60' times on Nitto 555 DR and mid to high 11's with zero problems. Just wondering what you thought might have caused your failure. Most of the time when a spider gear breaks it is on a burn-out when one tire stops spinning and the other still spin and then stops and hits the rear very hard at the and of the burn-out. What ET's and MPS are you running? Any guess on HP?
Teching In
Joined: Nov 2003
Posts: 26
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The rear end in my car is completly stock with the 3.42's. I have thought about purchasing a main cap stud kit and a T/A cover that my freind took out of his car when he sold it. I have a Sphon adjustable tourque arm, control arms and panhard bar as the only mods to the suspension. As far as the weight of the car I have done nothing to remove weight. What else do you plan on doing to your car to get to the 11's it seems that you need more than 60' to get to that point. I have many freinds that run mid 12's at Englishtown with virtually the same mods.
Thread Starter
Staging Lane
Joined: Jan 2002
Posts: 89
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From: Minnesota
gears, figure out my ls1 edit some more, and some devils breath..im hoping that I can get there on the motor though. Good luck with your rear, I do think it will be short lived with your m6
Teching In
Joined: Nov 2003
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Getting into the 11's on the motor is not that difficult. As you stated programming is a huge factor. I have been thinking about running nitrous, but have yet to do it. I don't know if I can send my computer back to TPIS and have them reprogram and get as good of results without them running the car as they did the first time. As for the rear end with almost 200 runs in the past year and a half.... only time will tell.
Thread Starter
Staging Lane
Joined: Jan 2002
Posts: 89
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From: Minnesota
Originally Posted by X-RACER
Getting into the 11's on the motor is not that difficult. As you stated programming is a huge factor. I have been thinking about running nitrous, but have yet to do it. I don't know if I can send my computer back to TPIS and have them reprogram and get as good of results without them running the car as they did the first time. As for the rear end with almost 200 runs in the past year and a half.... only time will tell.
Tpis like to use that sniffer system on the roads huh? Are you from around here or did you just do business out here with your car. Your post just sunk in, 200 runs on that 10 bolt?! Whats you secret?
Teching In
Joined: Nov 2003
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I guess you are close to TPIS, I just noticed that you are from Minnesota. I lived in Circle Pines for a few years, but moved out here in the spring. We took my car to a chassis dyno that they use quite often to tune the car. As far as my secret to the rear end holding up, I have no idea. I abuse the crap out of that car!!
Thread Starter
Staging Lane
Joined: Jan 2002
Posts: 89
Likes: 0
From: Minnesota
Originally Posted by X-RACER
I suppose a 10 bolt in a C5 would be junk....
Teching In
Joined: Nov 2003
Posts: 26
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I take it you guys are freinds. Just curious, but did the same guy set up both of your rears. That might be part of the problem of them breaking so frequently. There are a few fast 3rd gens in that area, but I do not remember one with a blower, is this car new to the area?