Craig, In peeking into the Chevy Master Parts books, I saw there are 2 different front hubs for 1 tons.

GM# 3683232 is for single wheel equipped trucks.

GM# 3778367 is for dual wheel equipped trucks.

Not sure how much different they are, but did see that the books do not provide hub dimensions. Hopefully a fellow one ton owner can measure and provide the details you need. 😉


~ Dan
1951 Chevy 3 window 3100
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"My Grandpa Carl's Truck and How it Became Mine"
1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver)
US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)