Thanks for the pics, those help clear up a couple of other questions I had. Yeah, we have a local spring shop around here that could re-build those J-3000 packs if need be, but I guess I wont know until I try 'em.
BDAB - The 10-Bolt swap is out, I found a D60 from a Dodge 2500, so it already has the pumpkin on the drivers side. I'm not using this truck for any hardcore wheeling, so having the CAD instead of lockouts doesn't really bother me. I can't use a waggy axle, because I need the 8 on 6.5" bolt pattern. I'm sure I could fart around with trying to find hubs/wheel bearings and such off a 3/4 ton vehicle that came equipped with the same axle, but why should I when I can just buy an axle out of a 3/4 ton truck that already has them? Anywhoo, thanks for the advice.