I have a 1954 chevy 3600 pickup that basically tops out at 35mph. I want to make it up to highway speeds by swapping out the rear end. For now, i have a 235 and muncie sm420 transmission.

I have gone through so many posts and forums about rear end swaps but am still so confused on what i should be looking for. Alot of the recommendations are from vehicles that are hard to come by.

So what I am asking is if anyone has any idea on what rear ends on post-90's vehicles i can use that will fit my 3600. Or at least tell me what I should be looking for in potential donors. I prefer to not have to do any welding but am open to any options. TIA