[71 RS Z28]

What is the mesurement from backing plate to backing plate on a 2nd gen Camaro rear? I have a rear that is 50" from backing plate to backing plate and I would like to know if it would fit.

[This message has been edited by 71 RS Z28 (edited 12-13-99).]

[MikeDF80]

I am not sure about the backing plate distance, but they should be 61 inches from drum face to drum face. Thats one inch wider than first generation.

[cardude]

By casting numbers, my 12 bolt is from a 70 year camaro and it's (approx) 55" from flange to flange. If stock, I'm not sure what that 50" diff. would be from. Has it possibly been modified (narrowed)?

[71 RS Z28]

The rear that I have I think came from a 69 RS and I was wondering if I move the spring purches out would the rear still fit on my car.

[Scooter]

I'd be careful when moving spring perches. If not done correctly, your car can "dogtrack" or have all kinds of vibration/driveline problems.

If done properly, a 1st Gen rear would physically fit in a 2nd Gen car, but the stock wheels may not work. You would need wheels with a smaller backspacing measurement, or they could rub on the inside of the wheel wells, or even on the leaf springs.

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70 & 1/2 RS
SB406 & M20 4spd
9" rear

70 Malibu 350/TH400

Gold member #103




[This message has been edited by Scooter (edited 12-17-99).]