496 BBC Stroker in 4X4 1969 C10

[polock07]

Hello

I'm Attempting to rebuild a 1969 C10 with a 4 speed manual transmission and 4 wheel drive. currently I'm reassembling the body and painting it, going with the two tone orange and white, but what no two people have been able to give me the same answer on is what I should do with the original transmission and drive train. The 496 was built to be a stump puller with a lot of torque around 550 the machine shop said, what do I need to do so that everything behind the engine can handle that?