Rear End Casting Number ?
Thread Starter
Senior Member
Joined: Sep 2004
Posts: 502
Likes: 1
From: Leesville, LA
Car: 1989 Camaro RS
Engine: Modified 350 TPI
Transmission: Modified 700 R4
Axle/Gears: Posi 3.42
Rear End Casting Number ?
Can't find where the casting number would be on a factory 1989 Camaro RS Rear End would be? Its old and I will get out the ole wire brush as soon as I know where to dig. Thanks-
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
IIRC, the number is on the front side of the pass axel tube. I'd be very surprised if you find anything. If it's a 10-bolt and if you're searching for ratio popping the diff cover and looking might be easier:
Numbers are stamped on the ring and pinion:
41 : 15 = 2.73
40 : 13 = 3.08
42 : 13 = 3.23
41 : 12 = 3.42
41 : 11 = 3.73
JamesC
Numbers are stamped on the ring and pinion:
41 : 15 = 2.73
40 : 13 = 3.08
42 : 13 = 3.23
41 : 12 = 3.42
41 : 11 = 3.73
JamesC
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