Toyota V6 Master Cylinder, 1" Bore Pickup, Hilux

If your truck has the 7/8" master cylinder this should be your first brake upgrade.

While most V6 trucks came with 1" master cylinders, 1979-1995 4-cylinder Toyota Pickups and 4Runners left the factory with a 7/8" cylinder.

This FJ-80 Master Cylinder is a great upgrade for those 7/8" cylinders.  It is the same size as the V6 master cylinder but also has built-in residual valves in the front and rear.  This means that the FJ-80 cylinder works well with either disk or drum brakes.  The only drawback is that you will need to bend your brake lines to fit.  You will also need to splice the level sensor wires because the plug is different.