Originally Posted by klhansen
I have found GL-4 in quarts Sta-Lube Brand and Triax Brand (pics.) I think I got both from Amazon.

Thanks Kevin... Nice to know the fluid capacity! So I assume Full synthetic is OK to use in a transmission from 1960 that dates back to the 50's? I might still go with the gear oil from Tracker Supply since I have 2 other old trucks that need transmission service and the 2 gallons might come in handy...

Thanks Phil for the links!!

1960 Chevy Apache (C10)
1965 Chevy C30 Dump Truck
1966 Chevy C30 Tow Truck