What kind of hubs did GM 4x4s have?
What kind of hubs did GM 4x4s have? PRE 1970: 1969-back 3/4 ton GM 4x4s came with an all metal External bolt on locking hub with small turn knobs on them, these hubs were also used on 3/4 ton Fords of that era, and possibly some Dodges. What was the GM front axle hub in 1970? 1970-71-72: In 1970 GM offered a new design of External bolt on locking hub for its 3/4 ton trucks which were all equipted with the HD44 front axle., It was a very heavy duty design, (over engineered some would say). The hub featured a...