The rear brakes are adjusted properly? Your sig indicates oversize tires which shouldn't be a problem with the late 88/89 brake setup. How are you determining 'failure' mode? 60 to stop? 90 to stop? Are the rotors and pads seasoned or broken in?

Raider vs. Ferrari?


1987 Raider - Roxy
1988 Mighty Max 2.6L Turbo - Pearl
1997 Mountaineer V8 - Freddy
2000 Excursion V10 - Freya