GM 1-ton master cylinder swap kit
Includes master cylinder and adapter plate assembly
Recommended for use with fullsize American axle swaps including rear disc brake conversions using 1/2-ton or larger rear calipers
1-1/4" bore master cylinder
Allows use of GM 1-ton master cylinder on power-brake-equipped Toyota minitruck, 4Runner, FJ40, FJ60, FJ80, T100. Also fits some Tundra and Tacoma applications with four-bolt master cylinders.

Not for use with Toyota LSPV; we recommend replumbing the brake system in order to remove the LSPV, sensing circuit, and associated plumbing.

Plumbing note: on this master cylinder, the port closest to the firewall (rear port) is for the front brakes.