Originally Posted by EdPruss
I am searching for a higher ratio rear for my '54 GMC, since 2 speeds default to low, how do I select high, manually on a non-running truck to check the high ratio?

Thanks,

Ed
"Yes, they default to low with a spring. Vacuum pulls them into high. I just stick something in the linkage at the axle to keep them in high."

Tim
1954Advance-Design.com
1954 3106 Carryall Suburban
1954 3104 5-window pickup w/Hydra-Matic
The 216 and early 235 engines are not "splash oilers" -- this is a splash oiler.