My rear disc brake kits work with OEM adjustable A-7 bearings, 3.15" A-20 tapered bearings, MO-400 Green bearings, ST-400 Green bearings and RP-400 Green bearings.
I have 3 versions with different rotor sizes: 13", 11.7" and 10.7".
The most popular size is 10.7" (pictured) which fits most 15" wheels.
Most 10.7" kits I sell come with a bolt-together steel caliper bracket because the high-offset aluminum version is cost prohibitive.
The 11.7" and 13" versions come with billet aluminum caliper brackets because the offset is much shallower.
Drilled/slotted/plated rotors are optional on all kits.