I'm sure you'll be fine with a knuckle swap from a 60 series/mini truck axle. A 60 rear is nice and requires minimal
effort. The brakes are better. You lose one cylinder on each side and the width gain ( 2 1/2ish ) gives you a little better
feel both on the highway in corners and on...
what will you do with the truck? Rock crawl, mostly street ? Is your idea of fun the John Bull trail in reverse, blindfolded or
more a take it fishing kind of guy?