I blew up my spider gears in my stock posi unit...
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so yeah... this is what i found after i took my rear apart
![](http://img123.imageshack.us/img123/2913/spidegearsur0.jpg)
I heard a loud banging out of my rear as i drove around a parking lot, i was like wow wtf... and it progressively got worse around corners. Then I went to make a left at one light and it just went nuts... the rear was banging like crazy. So I drove to my buddies house, and I managed to get there by putting the clutch in around turns. It made no noise at all, it was very wierd.
anyway, i got it all apart, and this is what I found.
So I called summit and i said yeah i have a 96 trans am, stock 10bolt 7.5" rear with a POSI. IDK how many times i said posi, but i asked and made sure it was for a posi, because on their site all i could find was the spider gears for a poo poo (open) diff. The guy assured me they were the right ones and I got them overnighted.
Sure enough, when they got to my house, WRONG ONES. they are smaller and the spiders that spline into the axle are COMPLETELY different. So i make more phone calls, and jegs tells me that no one makes the spider gears for a posi, and i would have to get a whole new carrier through GM ($800 lololol).
After some research, i found a set of spider gears for a posi
http://www.yukongear.com/ProductDetails.aspx?ProdID=968
yukongear makes it. and i priced it out, ~$210 friggen dollars for the set of just those gears... so i said EFF that!
My friend pointed me in this direction.
http://store.summitracing.com/partdetail.asp?autofilter=1&part=DTL%2D912A317&N=7 00+0&autoview=sku
![](http://static.summitracing.com/global/images/prod/large/dtl-912a310_w.jpg)
Detroit Locker, TrueTrac... for my crappy 10bolt
only $375... not bad. no more clutches or springs, just straight gears. and I might say, it seems to bite harder when i get on it after a turn. might just be me.
So just some info if u guys ever have to rebuild your crappy 10bolt posi gears. Just go with a locker
or if u have the money... 9"
![](http://img123.imageshack.us/img123/2913/spidegearsur0.jpg)
![Grin](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_grin.gif)
I heard a loud banging out of my rear as i drove around a parking lot, i was like wow wtf... and it progressively got worse around corners. Then I went to make a left at one light and it just went nuts... the rear was banging like crazy. So I drove to my buddies house, and I managed to get there by putting the clutch in around turns. It made no noise at all, it was very wierd.
anyway, i got it all apart, and this is what I found.
So I called summit and i said yeah i have a 96 trans am, stock 10bolt 7.5" rear with a POSI. IDK how many times i said posi, but i asked and made sure it was for a posi, because on their site all i could find was the spider gears for a poo poo (open) diff. The guy assured me they were the right ones and I got them overnighted.
Sure enough, when they got to my house, WRONG ONES. they are smaller and the spiders that spline into the axle are COMPLETELY different. So i make more phone calls, and jegs tells me that no one makes the spider gears for a posi, and i would have to get a whole new carrier through GM ($800 lololol).
After some research, i found a set of spider gears for a posi
http://www.yukongear.com/ProductDetails.aspx?ProdID=968
yukongear makes it. and i priced it out, ~$210 friggen dollars for the set of just those gears... so i said EFF that!
My friend pointed me in this direction.
http://store.summitracing.com/partdetail.asp?autofilter=1&part=DTL%2D912A317&N=7 00+0&autoview=sku
![](http://static.summitracing.com/global/images/prod/large/dtl-912a310_w.jpg)
Detroit Locker, TrueTrac... for my crappy 10bolt
only $375... not bad. no more clutches or springs, just straight gears. and I might say, it seems to bite harder when i get on it after a turn. might just be me.
So just some info if u guys ever have to rebuild your crappy 10bolt posi gears. Just go with a locker
![Grin](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_grin.gif)
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I wish I could. money is a pinch and I had to get my car back on the road. My other car just blew out its rear brakes, so I was boned lol
I want a 9" soooo bad
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Damn man, I just broke my rearend Saturday. I broke my spider gears as well. I was looking into getting another carrier and found a guy who has a rearend with 4.10's so I may just go that route! Glad you got it straightened out. I'm getting my 12 bolt or 9 inch this winter and was thinking of going with 3.73's but I guess if I get this rearend with 4.10's That will make me decide whether or not to stay with 3.42's, or go to 3.73's or 4.10's after I run the 4.10's for a while!
Thanks for the info you posted as well. I'm sure that would be helpful for someone!
James
Thanks for the info you posted as well. I'm sure that would be helpful for someone!
James
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What kind of tires were you running, how hard were you pushing that 10 bolt.?
97 Z28 6sp., CAI, airfoil, LTs with ory, magnaflow, hypertech, B&M shifter.
2.17 60ft. 13.79 @ 101.04 @ 1500ft., just another high mileaged LT1
97 Z28 6sp., CAI, airfoil, LTs with ory, magnaflow, hypertech, B&M shifter.
2.17 60ft. 13.79 @ 101.04 @ 1500ft., just another high mileaged LT1
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Yeah I know how that feels, I broke my last 10 bolt in my Iroc with a 355 in it and I was about 30 minutes away from my shop.... I ended up hauling *** to the shop and yanked it out and put in another 1.
The 1 in my Formula I had broken while beating a supercharged Notchback Stang that kept talking mad **** all night about how he'd get his s/c stang and whoop my cars ***. I told him I am a stock lt1 with exhaust, gears, and CAI, and Some Suspension and that I hoped his s/c Stang would kick my cars *** in a race. Never-the-less he finally went back to his shop and pulled it out and we raced about 6 times, all of which my girl was driving and I was shifting the Automatic for her and she walked him good everytime. His excuse was he broke a s/c belt but I told him I heard it whinning and he didn't say anything. He just turned off after the last race.
I guess I won and Lost at the same time huh!
Bad thing was I was only on Nitto's on the Street!![Icon Confused](https://ls1tech.com/forums/images/smilies2/icon_confused.gif)
The 1 in my Formula I had broken while beating a supercharged Notchback Stang that kept talking mad **** all night about how he'd get his s/c stang and whoop my cars ***. I told him I am a stock lt1 with exhaust, gears, and CAI, and Some Suspension and that I hoped his s/c Stang would kick my cars *** in a race. Never-the-less he finally went back to his shop and pulled it out and we raced about 6 times, all of which my girl was driving and I was shifting the Automatic for her and she walked him good everytime. His excuse was he broke a s/c belt but I told him I heard it whinning and he didn't say anything. He just turned off after the last race.
I guess I won and Lost at the same time huh!
Bad thing was I was only on Nitto's on the Street!
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