GMC in that era use Dana rear ends, you can gets lots of ratios for them.
Show us some pictures of what you got!

Last edited by BC59; 09/13/2023 5:06 AM.

BC
1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc
1949 GMC 250 project in waiting
1960 C60 pasture art
Retired GM dealer tech. 1980 - 2022