Originally Posted by EdPruss
When I changed the single speed 6.5 ratio in my GMC to a two speed, the new axles fit OK, however, some axle shafts are the same length and some are not same length, you guys lucked out.

Ed
The shaft length is the next concern. My original shafts are unequal length, the two speed shafts are equal length but different than mine.

Last edited by 78buckshot; 08/04/2023 11:40 AM.

1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy