Yes, they are two different applications.
What I am working on is a BBK (Big Brake Kit) for Quigley 4x4 conversions to go with our RIP.
Quigleys require rotors purchased through them or machined by someone to their specs. They use a single piston Chevy style caliper and an ~12.25 inch rotor - many complain about the insufficient braking power in heavy vans and SMB's.
I prototyped a caliper bracket and am having it drawn up and manufactured - still waiting on costs.
It uses a nearly 14 inch rotor, 1.5 inches thick, available in standard or cross-drilled and slotted, and a Ford dual piston caliper.
It fits inside a FORD stock 16 inch steel or aluminum wheel and the two aftermarket 16 in aluminum wheels I had available.
I'm wondering what the demand would be and how much the kit (bracket, rotor, fully loaded caliper, wheel studs) could sell for.
Four time Baja 1000 winner, four time Baja 500 winner. Solo'ed the Baja 1000 to LaPaz/Cabo twice.
4-Wheeling since 1972, Desert Racing since 1989.