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4th gen rear end identification

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Old 07-15-2013, 11:31 PM
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Car: 1990 IROC Convertible
Engine: 5.7 TPI, L98 Heads w/roller rockers
Transmission: T-5
4th gen rear end identification

So I am looking to buy a 3:73 disc brake 4th gen rear end, but while I am looking is there an easy way to ID the rear end? I know there is probably another thread on this somewhere but I could not find it... Any help would be much appreciated!! Thanks!!
Old 07-16-2013, 12:46 AM
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Car: 1982 Z28 & 1967 RS & 2002 Z28
Engine: 388 ci SB / 454 ci BB / LS1
Transmission: 4 speed / TH350 / T56
Axle/Gears: '91 "1LE" rear, posi w/ 3.23's
Re: 4th gen rear end identification

3.73 was never a stock ratio in the V8 (posi) 4th gen rears ...

3.42 was the lower ration in the 6 speed cars

3.23 or 2.73 in an automatic car
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