Whats the difference?

[LeadFootedRacer]

whats the difference between srw and drw d60's or d70's? Obviously the rotor/hub assembly is different to allow for the duallie style wheel, but is that the only thing?

I'm poking at the thought of some crazy build. its so insane i should be hospitalized. 

[harry balls]

i know if you have a standard 3/4-1 ton axel they sell a big bolt on adapter to make it a duallie setup.  so im assumeing the housing is the same.

just picked up the 2 tranfer cases.....still have no idea what you re planning