1955 Pontiac

[Hawkeye4112]

Looking for 3:90 gears for a 1955 Pontiac. They were in straight stick transmissions and possibly in station wagons. They called them Hills gears.

[55chieftain]

Hi welcome to the Hamb. You may have better luck finding that gearset in an older Pontiac that had a flathead. The center carrier will fit in your rear end housing and they had 10 spline axles also. IIRC the ring gear is a little smaller and you'll need to exchange the whole center section anyway. My manual trans car had 3:64's btw. I think the cut off was 47? that had tapered bearings as opposed to roller bearings for the older rears. HTH , Bill