What size tires are you running?

That old style brake setup is designed for the stock 235/75R15 (~29") tires. My '86 Runner's brakes never worked well either, especially when running 33's and 35's (never could lock up tires on dry pavement). The later style brake setup (aka "V6" brakes) is much more powerful. My T100 (v6 style brakes) can lock up 35's.


'97 4Runner, '06 F350, '86 4Runner, '05 WR450
http://home.4x4wire.com/erik