Ok. So I'm putting a 4k into an early 1lt sierra (motor blew and 4k came up cheap) now i have a gear box sitting in the shed which i believe is a t50 k-t. Spine is 21t and bell house defiantly bolts up directly to box and motor. Main.question is how good is the gearbox (will it hold up for 4wding). I have all.the parts for the conversion ( jackshaft, engine mounts etc.) also i have been told its a hard to find box combo? If so, just curious as to what money value it is worth.
Thank you in advance.