Disc brake help...
 

Hey guys,
I have a 69 Chevy 3/4 ton 4x4 truck with the long stepwise bed. I'd like to know what options exist for either converting these differentials to disc brakes, or info on what axle swaps might be the simplest that would get me disc brakes.
I've searched but only found info for 2wd.

Any info you could give me would be great.
Thanks
Nick