1977 gmc sierra - 1970 c-10 drive train
 

I'm thinking about buying my neighbor's 77 gmc sierra and taking the drive train out and dropping in my 70...what do you guys think? do i have to make a lot of modifications?

i want to use the diff, tranny, motor and front brakes...

thanks

Re: 1977 gmc sierra - 1970 c-10 drive train
 

engine and trans, no problem (assuming like engine and having correct manifolds and mounts)

front crossmember and brakes, no problem (except 5 vs 6 lug)

axle requires welding

Really need more details on exactly what you have, what the donor truck has, and what you are trying to accomplish.