Rear ends???

[coachmitchel]

First of what I'm sure will be many questions. Recently purchased my first old truck, 1959. Going to take out the 235 and replace with a rebuilt 327 and turbo 350. Question I have is will the original rear end hold up? Eventually will change over to disc brakes up front, waiting on deciding on rear end first, so the 5 or 6 lug conversion. I have spent days looking at old posts. Just needs some guidance. If I should replace it what should I looking for, I have read a lot about camaros/trans am/4x4 blazer. I know 62 in width. My goal is a good all around driver, a little ump and handle the 65 on the highway. Thanks in advance, you guys are impressive.
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