Bulletin BPI 01-21 Subject: Disc brake squeal

Bulletin BPI 01-21
Subject:
Disc brake squeal after brake reline.
Vehicles Involved: All vehicles equipped with locating or indexing nibs on the
inboard pad.
Repair Procedure: Incorrect installation of the inboard pad could cause brake squeal.
It is necessary to index the nibs or protrusions on the backside of the inboard pad to the
caliper piston when replacing brakes. Misalignment of the inboard pad is not always
obvious. It may be necessary to remove the caliper assembly to check the relationship
of the inboard pad to the caliper piston.
The pad friction surface must completely contact the rotor. Misalignment of the
protrusions inhibit pad surface to rotor contact, resulting in excessive heat and noise.
Brake Parts Inc. 4400 Prime Parkway McHenry, IL 60050 (815) 363-9000
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