How To Rebuild Rear End of a 1966 Chevy C-10

[JNB]

I am sure I will receive lots of leave it to a professional replies. Let me explain I am currently fighting a battle with cancer and this 1966 project with my father in law is his way of us spending time together doing something we both dearly enjoy. The truck has been sitting in the pasture for 25 years so our shear enjoyment of getting it running has been excellent. We have the motor (283) running, which we rebuilt the carb, replaced the distributor, fuel pump replaced also, It was as I said wonderful to hear it run. We have replaced the clutch, throw out bearing and pressure plate. Now we are in need of rebuilding the rear end and we are in need of some help as to where to find manuals, advice, really any help at all. Let me explain the need for the rebuild is when we removed the pinion seal to replace due to a leak we found that the pinion bearing and sleeve were shot. So please any help would be greatly appreciated.