So, this doesn't actually apply to our bodystyle, the truck i'm looking at is a factory '68 Chev 3/4 ton 4x4 but since this is Chevy we're talking about they didn't change that much in their trucks.
What would said truck have as factory drivetrain equipment? All I know is the engine is a 292 straight six; trans is a 4-speed stick w/ low gear. Would that be a TM465? and what kind of transfer case would it likely have, an NP205? Open differentials or maybe some sort of posi unit out back? again as far as I know the truck is bone stock and it's fairly safe to assume so.