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

12 bolt rearend

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Old Jan 13, 2002 | 10:45 PM
  #1  
deepstage69's Avatar
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From: Kingsport, TN
Car: '92 RS, '84 Z28
Engine: 383, L69
Transmission: T56, 700R4
Axle/Gears: 3.42, 3.42
12 bolt rearend

i got a '92 rs coupe with a 305 tbi which will be switched to a 350 tpi, well anyway i was wantin to know if i can get a 12 bolt rearend out of any thing that would bolt right up
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Old Jan 13, 2002 | 11:10 PM
  #2  
AlkyIROC's Avatar
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From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
The only diff that will "bolt-in" to a third gen is one from a third or fourth gen. Neither were offered with a 12 bolt since the last 12 bolt to be offered in a car was back in the 70's.

There are companies like Currie, Moser and Strange that sell third gen bolt-in 9" and 12 bolts. Expect to pay around $2000 for a complete diff.
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