Hello I am putting in my 4 speed with carrier bearing. I have ran into a problem with the rear end yoke is smaller on my 55 2nd series than the 55 1st series that I took the 4 speed and the two drive shafts.

My 55 2nd has a 3 1/2 inch with a 1 1/16 x3 3/16 u-Joint

The 55 1st series has 3 3/16 x 3 5/8 or 11/16

The question is does the first and second series have the same yoke spline will they enter change ? That would be for the pinion gear spline

Thanks for any help

P.S drive shaft on 2nd series is 3 1/2 the first series is 2 1/2

Last edited by mikeg1955; 12/21/2024 8:16 PM.

1955 second series 3200