Quote:
Originally Posted by Tim Christian
Straight out of my 1967 GMC Truck Service Manual
C = Conv. Cab
M = V6 Gasoline
1 = 1/2 Ton
57 = Wheelbase
OC = Fenderside
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Yep, Its also in the 67 GMC owners manuals. For the 1st digit, if its a K, then its a 4x4 conventional cab. If its a P, its a forward control.
This truck could have had a 351 V6 as well. An interesting side note, the V6's holds about 7.5 gallons of coolant compared to 3 for the inline 6's!