front & rear hubs?

[Americanrider]

C&C dually axle are scooped out of the junkyards fast, faster when you are in an area that has a high 4x4 population. Up here expect to pay 350-650 for one IF your lucky to find it. They are favored for their strength and compact size. Swapping in disks should not be to much of a hassle. Check out Blackbird's Custom trucks, they can point you in the right direction.

What are you looking to gain by getting the bigger hubs? You could change the outter knuckles with an older (71-74) D44 axle and get bigger bearings along with the bigger hubs, is that what your after?