Likely factory ratio? '70 Cutlass 4-door 350/350 12-bolt olds posi
July 1st, 2011, 07:42 AM
#1
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Join Date: May 2011
Location: Melrose FL 32666
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Likely factory ratio? '70 Cutlass 4-door 350/350 12-bolt olds posi
I just picked up this '70 4-door yesterday, and was thrilled to find the olds 12-bolt cover posi rear end. What would have been the factory ratio, behind a 350/350 4-barrel?
Also, has anyone ever seen the R2 code stamped on the back of the passenger axle tube, but the rear being a posi unit with a different ratio than 2.56 open?
Steve
Also, has anyone ever seen the R2 code stamped on the back of the passenger axle tube, but the rear being a posi unit with a different ratio than 2.56 open?
Steve
July 1st, 2011, 08:05 AM
#2
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Join Date: Sep 2010
Location: Indianapolis
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Steve,
Not sure about the code, but I know that if the car had AC, the highest(numerically) ratio they would install was a 3:23. I've heard that was to keep the ac compressor from spinning to fast for to long a time, or something similar. Congrats on the find!
Scott
Not sure about the code, but I know that if the car had AC, the highest(numerically) ratio they would install was a 3:23. I've heard that was to keep the ac compressor from spinning to fast for to long a time, or something similar. Congrats on the find!
Scott
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