Brake Noise; Permanent Modification To Lower Ball Joints; Brake Vibration - StopTech ST-40 Caliper Installation Instructions Manual

APPLICA APPLICA APPLICATION DISCL
APPLICA APPLICA
B B B B B rake N rake N rake N oise oise
rake N rake Noise oise oise
Certain brake pad compounds make more noise than others. Proper anti-squeal shim plates be-
tween the caliper pistons and backing plate of the pad help to reduce the problem. Anti-squeal
lubricants are also available, to reduce some of the noise. The reality is that performance pads are
more prone to brake squeal.
Note: The customer is responsible for any squeal-related problems due to pad selection. Note: The customer is responsible for any squeal-related problems due to pad selection. Note: The customer is responsible for any squeal-related problems due to pad selection.
Note: The customer is responsible for any squeal-related problems due to pad selection. Note: The customer is responsible for any squeal-related problems due to pad selection.
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It may be necessary to grind a portion of each lower ball joint, to clear the inboard face of the rotor
during full suspension travel. If done carefully, this modification will not affect the strength or
structural integrity of the vehicle. Although a coarse file will remove the material, a power grinder,
if used properly, will be more efficient. If you are uncomfortable making this modification, seek
the help of a qualified professional.
B B B B B rake rake rake Vibration - Vibration -
rake rake Vibration - Vibration - Vibration - THIS IS IMPOR
The most common cause of brake vibration is improper bed-in of pads and rotors, or improper pad
selection for the specific driving environment. Rotor run-out may also cause vibration, but preci-
sion manufacturing and inspection typically mean that run-out is not an issue. Modern produc-
tion methods ensure that the rotor run-out is within +/- 0.002" when installed on a StopTech alumi-
num hat, and it controls thickness variation to within 0.0003". Under the most extreme conditions,
any rotor may warp, but uneven pad deposition is a more typical cause of vibration. If the system
is not properly bedded-in, or if street pads are run on an open track, uneven pad deposits will occur,
causing an ever-worsening vibration. Failure to immediately address a pad deposition/vibration
issue may lead to permanent damage of the rotors. Please read and understand the bed-in proce-
dure included in this manual. If you have any questions, please contact the StopTech Customer
Service Department on (310) 325-4799 - extension 105, or you can e-mail directly to
support@stoptech.com support@stoptech.com. support@stoptech.com
support@stoptech.com support@stoptech.com
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pads and rotors. pads and rotors. pads and rotors.
pads and rotors. pads and rotors.
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ated nor affiliated with, nor sponsored by General Motors. ated nor affiliated with, nor sponsored by General Motors. ated nor affiliated with, nor sponsored by General Motors. ated nor affiliated with, nor sponsored by General Motors. ated nor affiliated with, nor sponsored by General Motors.
3541 Unit A, Lomita Boulevard, Torrance, CA 90505 (310) 325-4799
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