Transmissions and Drivetrain Need help with your trans? Problems with your axle?

3:70 gears for the 9 bolt???

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Old Sep 29, 2004 | 09:24 PM
  #1  
speed88's Avatar
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From: St. John's, NL, Canada
Car: 1988 Trans Am GTA
Engine: 383
Transmission: 700R4
3:70 gears for the 9 bolt???

Does anyone make these anymore? I thought you could buy them new from Richmond Gear but I don't see them listed anymore??
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Old Sep 29, 2004 | 11:30 PM
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From: Hampden Maine
Car: 1992 Firebird
Engine: Stealth Rammed 412 with TC78 Turbo
Transmission: '93 T-56
Axle/Gears: 3.27 9 bolt posi with PBR discs
Check out www.9bolt.com He sells parts for the 9 bolt rears. 3.73's with an install kit go for $475.

-Paul
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Old Sep 30, 2004 | 07:44 AM
  #3  
speed88's Avatar
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From: St. John's, NL, Canada
Car: 1988 Trans Am GTA
Engine: 383
Transmission: 700R4
But didn't Richmond or some other gear company make a 3:70 ratio for the 9 bolt new?
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Old Sep 30, 2004 | 08:01 AM
  #4  
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From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
I don't think Miles is doing the 9bolt.com thing any more, but I could be wrong.

Try here http://www.drivetrainspecialists.com...s.php?catid=29, or Randy's R&P www.ringpinion.com

Last edited by RB83L69; Sep 30, 2004 at 10:23 AM.
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Old Sep 30, 2004 | 09:46 AM
  #5  
speed88's Avatar
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From: St. John's, NL, Canada
Car: 1988 Trans Am GTA
Engine: 383
Transmission: 700R4
I did some research and found these sites..

Presicion Gear, is a well known and respected performance company.

www.precisiongear.com

http://www.gearsareus.com/GearsAreUs...ff/gearsgm.htm

http://www.drivetrainspecialists.com...s.php?catid=29

www.reiderracing.com/gm734.htm
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Old Sep 30, 2004 | 09:54 AM
  #6  
quadgoat's Avatar
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From: Hampden Maine
Car: 1992 Firebird
Engine: Stealth Rammed 412 with TC78 Turbo
Transmission: '93 T-56
Axle/Gears: 3.27 9 bolt posi with PBR discs
Originally posted by RB83L69
I don't think Miles is doing the 9bolt.com thing any more, but I could be wrong.

Try here http://www.drivetrainspecialists.com....php?catid=29, or Randy's R&P www.ringpinion.com

Bummer, I didn't know that. Oh well, at least there are other sources. Now I'm extra glad I grabbed a spare posi carrier off eBay! Any idea why he stopped doing it?
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Old Sep 30, 2004 | 10:23 AM
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From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
Seems like he posted something about that he was moving on to other things, didn't really have time for it any more, wasn't really making any money off of it anyway (too low sales volume I would guess... there's lots of noise around here about upgrading those, but talk is cheap while gears are not). I haven't seen him post here in quite a while now.

Last edited by RB83L69; Sep 30, 2004 at 10:27 AM.
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Old Oct 1, 2004 | 05:54 PM
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88 350 tpi formula's Avatar
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From: WI,USA
Car: 89 FORMULA 350, 91 Z28 Convertible
Engine: ls1, LB9
Transmission: t56, Auto
Axle/Gears: S60/ 3.73
I just sent him an e-mail and asked him about the posi cones for the posi units and if he was going to sell them still this winter when I take mine out . he said he is currently working out a deal for more gears 3.23-4.XX, posi cones, and posi units. he said he will even get the diff covers. it sounded like he was getting everything! he was waiting for the final word or something but, he said when it gets worked out he will update the site


I might even pick up a new posi from him if I the funds are there.

I have heard he is always buisy and has very little time to send e-mails to everyone but, he sent a reply right away
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Old Oct 1, 2004 | 06:08 PM
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From: Hampden Maine
Car: 1992 Firebird
Engine: Stealth Rammed 412 with TC78 Turbo
Transmission: '93 T-56
Axle/Gears: 3.27 9 bolt posi with PBR discs
Hey, just ran across this surfing ebay for 9 bolt stuff. Brand new 3.70 gears, seems like a pretty nice deal on them too! Manufactured by Yukon Gear. ****** them up if you need 'em! http://cgi.ebay.com/ebaymotors/ws/eB...925613526&rd=1

-Paul
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Old Oct 1, 2004 | 07:56 PM
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88 350 tpi formula's Avatar
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From: WI,USA
Car: 89 FORMULA 350, 91 Z28 Convertible
Engine: ls1, LB9
Transmission: t56, Auto
Axle/Gears: S60/ 3.73
I picked up a set a while ago but, those are going in my spare diff. the one in the car has 3.45s and a posi that needs cones
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