Rear axle and differential
May 17th, 2018, 04:38 PM
#1
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Rear axle and differential
Are the rear differentials the same for 1968 and 1968 cutlass? Type O
I have a 1969 open with 2:56 gears and may have access to a 1968 with 2:73 gears. Is it worth it or is this to small a difference?
I have a 1969 open with 2:56 gears and may have access to a 1968 with 2:73 gears. Is it worth it or is this to small a difference?
May 19th, 2018, 05:05 AM
#4
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Join Date: Dec 2006
Location: Melville, Saskatchewan
Posts: 8,909
Type O would be 2.78, you run a few hundred more on the highway, leave it alone. I have those gears and added a TH350C to have similar cruising RPM to the 2.56 gears.
Last edited by olds 307 and 403; May 19th, 2018 at 05:07 AM.
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