I am swapping in the front spindles with disc brakes into my 65 from a 84 C10. I am also adding the power steering box, power brake master cylinder and the rear axle (10 bolt with a posi!) The rear axle required me to cut the spring perches off and weld on custom made ones for the trailing arms to meet up with. I also had to fabricate the track bar mount. If you are swapping in a 12 bolt to a 12 bolt, then you can just gut the old one and pop in the newer parts to the old housing. Saves on the fabrication part.
