The last posts show my new low cost (bolt-on) 11" GM Metric based rear disc brake kit. It is best suited for drag cars with skinny tires on the front of the car, and large tires on the rear. This brake kit yields more rear bias, as 2", 2 3/8" and 2 1/2" bore calipers are available. Even though they will interchange, I don't recommend using the troublesome GM caliper with the built in parking brake.

I recommend my 10.7" or 11.7", Mustang Cobra based rear disc brake kits for other (street/handling) applications. These kits incorporate a reliable, integral parking brake mechanism and small (1.5") pistons for cars that require less rear brake bias.