The weak link will be the 700R4 aka 4L60. It wasn't used o.e. in anything over 7200GVW rating (light 3/4 or heavy half ton, 6 lug wheels). The later 4L60E is better but still light duty. 4L80E would be my choise.


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