I've got both Dodges and Chevy 60's underneith their trucks. It would be very hard to make my Ram's 60 work underneith my K30, since they drop on different sides.
The newer Dodge 60's are fine, for what application they are designed for. CAD (central axle disconnect) could be a mess underneith a Chevy (unless you were innovative to make the system work in the Chevy like it does in a Dodge), but works great in my Ram as I never have to mess with hubs, have better looking front center caps, and still don't have a turning front driveshaft when I'm in 2wd.
Ball joints are a downside to the king pins, but I've never had a problem, even with the bulky weight of a Cummins sitting on top of said D60.
Unit bearings suck, they are expensive and too close together...but, same goes there for me too...no problems with them either.
Infact, the only problems I've had with any of my 60's are the Spicer hubs on my Chevy 60.