[Oletrucks] Rear differential swap

[Richard McAnulty]

Looking at possibly swapping the rear gears in my 50 (with a 56 third member) to the 3.55/1 ring and pinion set. I’m guessing the 50 and 56 are interchangeable.
This would be way beyond my mechanical and tool capabilities so I’m looking for information on how long it could take a seasoned mechanic to complete so I can estimate labor costs.
Also, who sells the most complete kit, would like to avoid tracking down individual miscellaneous parts if possible.

Thanks
Ric

50 5-window custom cab, 235/4 speed granny trans, with dual Rochester's, electronic ignition, split exhaust, front disc brakes

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