Brake rotors wear quickly. Some '91 owners have reported
minimum tolerances on rotors before reaching 60k miles. Rear brakes may wear faster than front.
A number of owners have reported VERY uneven wear on the inside
pads. In some cases, 1/2 wear on outside pad, with the interior
pad completely worn out at < 35k miles. Be sure the slide bolts
are well lubricated with a high temperature grease.