I have a friend here that just sent me an e-mail asking if I could find out if the 9 and 10 bolt rear ends used in camaros/firebirds have interchangable center sections. I imagine this is just the ring and pinion/posi unit he's worried about but if any of you Gurus out there know of anything interchangable between the two center sections I'd much appreciate hearing about it. Take care now.

 

Nothing internal in these 2 diffs are interchangable. The only thing they have in common are the external mounting points.

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Stephen's racing page

87 IROC-Z Pro ET Bracket Race Car and knocking on the SuperPro ET class
383 stroker (carbed) with double hump cast iron heads and pump gas
LS6 Big Block buildup now in progress

Best results before the 383 blew up
Best ET on a time slip: 11.857
Best corrected ET: 11.163
Best MPH on a time slip: 117.87
Best corrected MPH: 126.10
Best 60 foot: 1.662

Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association

87 IROC bracket car
91 454SS daily driver
95 Homebuilt Harley

 

That's about what I figured, thanks for the info and take care now.

Gary