Brake Caliper Replacement Front, Bendix
Removal Procedure
Caution: Do not move the vehicle until a firm brake pedal is obtained. Failure
to obtain a firm pedal before moving vehicle may result in personal injury.
- Apply the parking brake.
- Block the wheels.
- Remove about 2/3 of the brake fluid from the master cylinder reservoir.
• | Do not completely drain the master cylinder reservoir. |
• | Drain the fluid from the brake caliper bleeder valve. |
• | Drain the fluid into a suitable container. Discard the fluid. |
- Raise the vehicle. Support the vehicle with safety stands. Refer
to
Lifting and Jacking the Vehicle
in General Information.
- Remove the tires and wheels. Refer to the applicable procedure
in Tires and Wheels:
• | Tire and Wheel Removal and Installation (Disc Type-Single Front/Rear) |
• | Tire and Wheel Removal and Installation (Disc Type-Dual) |
• | Tire and Wheel Removal and Installation (Cast Type-Single Front/Rear) |
• | Tire and Wheel Removal and Installation (Cast Type-Dual) |
- Remove the brake caliper retainer bolt (1).
- Remove the brake caliper retainer (3) and the brake caliper
spring (2) using a brass punch.
- Compress the pistons, using one of the following methods:
• | Using a C-clamp between the inner brake caliper housing and the
outer brake pad. |
• | Use screwdrivers in order to pry between theouter brake caliper
housing and the outer brake pad. |
- While compressing the
pistons, watch the reservoir for possible brake fluid overflow. The inner
brake pad may stay on the brake caliper mounting plate (Bendix® caliper).
- Remove the wheel speed sensor. Refer to
Front Wheel Speed Sensor Replacement
. in Wheel Speed Sensor Replacement
in Antilock Brakes.
- Disconnect the brake hose.
- Cap or tape the brake hose fitting in order to prevent contamination.
Notice: Do not allow calipers to hang from the flexible hoses. Doing so can
damage the hoses.
- Remove the front brake hose.
- Remove the front brake caliper.
Inspection Procedure
Caution: Avoid taking the following actions when you service wheel brake parts:
• | Do not grind brake linings. |
• | Do not sand brake linings. |
• | Do not clean wheel brake parts with a dry brush or with compressed air. |
Some models or aftermarket brake parts may contain asbestos fibers which can
become airborne in dust. Breathing dust with asbestos fibers may cause serious bodily
harm. Use a water-dampened cloth in order to remove any dust on brake parts. Equipment
is available commercially in order to perform this washing function. These wet methods
prevent fibers from becoming airborne.
- Clean the area around the brake hose on the brake caliper. Use Brake
Parts cleaner GM P/N 12345754 or the equivalent.
- Inspect the support rail
surfaces on the brake caliper.
- Inspect the support rail surfaces on the brake caliper mounting
plate.
- Inspect the heat shields. If the heat shields are loose, replace
the shields.
Installation Procedure
- Clean the support rail surfaces of the brake caliper with a wire
brush. File smooth any deep nicks or gouges.
- Clean the support rail surfaces of the brake caliper mounting
plate with a wire brush. File smooth any deep nicks or gouges.
- Apply a thin coat of Brake Caliper Lubricant GM P/N 12377969,
or the equivalent, to the brake caliper support rail surfaces.
- Apply a thin coat of Brake
Caliper Lubricant GM P/N 12377969, or the equivalent, to the
brake caliper mounting plate support rail surfaces.
- Install the brake caliper.
Notice: Make sure the brake hose is not twisted or kinked after
installation. Damage to the hose could result.
- Install the brake hose.
- Loosely assemble the brake hose nut to the brake caliper.
Notice: Use the correct fastener in the correct location. Replacement fasteners
must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant
are identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems.
- Loosely assemble the
brake hose bracket to the brake caliper.
Tighten
• | Tighten the brake hose nut to 19 N·m (14 lb ft). |
• | Tighten the brake hose bracket bolts to 32 N·m (24 lb ft). |
- Install the wheel speed sensor. Refer to
Front Wheel Speed Sensor Replacement
in Antilock
Brakes System.
- Select a shim. Refer to Caliper Wear Shim Specifications (Bendix)
.
- Apply a thin coat of Brake Caliper Lubricant GM P/N 12377969,
or equivalent, to the brake caliper retainer and the brake caliper spring.
- Tap the brake caliper retainer (3) and brake caliper spring (2) into
place using a brass punch and a light weight hammer. The hose in the brake
caliper retainer should line up with the threaded hole in the brake caliper
mounting plate (4).
Important: The brake caliper retainer bolt boss must fit in the circular hole in
the brake caliper retainer.
Important: Do not reuse the brake caliper retainer bolt .
- Install a NEW brake caliper retainer bolt.
Tighten
Tighten the brake caliper retainer bolt (1) to 40 N·m (29 lb ft).
- Fill the master cylinder reservoir with brake fluid. Use Brake
Fluid GM P/N 1052535, or the equivalent. Refer to
Master Cylinder Reservoir Filling
.
- Bleed the hydraulic brake system. Refer to
Hydraulic Brake System Bleeding
.
Important: Check the fluid level in the master cylinder reservoir after pumping
the brake pedal.
- Pump the brake pedal several times in order to ensure that the pedal
is firm and the brake linings are adjusted.
- Install the tires and wheels. Refer to the applicable procedure
in Tires and Wheels:
• | Tire and Wheel Removal and Installation (Disc Type-Single Front/Rear) |
• | Tire and Wheel Removal and Installation (Disc Type-Dual) |
• | Tire and Wheel Removal and Installation (Cast Type-Single Front/Rear) |
• | Tire and Wheel Removal and Installation (Cast Type-Dual) |
- Lower the vehicle.
Caution: Do not move the vehicle until a firm brake pedal is obtained. Failure
to obtain a firm pedal before moving vehicle may result in personal injury.
- Remove the wheel blocks.
Brake Caliper Replacement Front, Dayton-Walther
Removal Procedure
- Apply the parking brake.
- Block the wheels.
- Remove about 2/3 of the brake fluid from the master cylinder reservoir.
• | Do not completely drain the master cylinder reservoir. |
• | Drain the fluid from the brake caliper bleeder valve. |
• | Drained the fluid into a suitable container. Discard the fluid. |
- Raise the vehicle. Support the vehicle with safety stands. Refer
to
Lifting and Jacking the Vehicle
in General Information.
- Remove the tires and wheels. Refer to the applicable procedure
in Tires and Wheels:
• | Tire and Wheel Removal and Installation (Disc Type-Single Front/Rear) |
• | Tire and Wheel Removal and Installation (Disc Type-Dual) |
• | Tire and Wheel Removal and Installation (Cast Type-Single Front/Rear) |
• | Tire and Wheel Removal and Installation (Cast Type-Dual) |
- Remove the brake caliper
retainer bolt (1).
- Remove the brake caliper retainer (3) and brake caliper
spring (2) using a brass punch.
- Compress the pistons, using one of the following methods:
• | Use screwdrivers to pry between the outer brake caliper housing
and the outer brake pad. |
• | Use a C-clamp between the inner brake caliper housing and the
outer brake pad. |
- While compressing the pistons, watch the reservoir for possible
brake fluid overflow.
- Remove the wheel speed sensor. Refer to
Front Wheel Speed Sensor Replacement
in Antilock
Brakes System.
- Disconnect the brake hose.
- Cap or tape the brake hose fitting in order to prevent contamination.
Notice: Do not allow calipers to hang from the flexible hoses. Doing so can
damage the hoses.
- Remove the brake caliper.
Inspection Procedure
Caution: Avoid taking the following actions when you service wheel brake parts:
• | Do not grind brake linings. |
• | Do not sand brake linings. |
• | Do not clean wheel brake parts with a dry brush or with compressed air. |
Some models or aftermarket brake parts may contain asbestos fibers which can
become airborne in dust. Breathing dust with asbestos fibers may cause serious bodily
harm. Use a water-dampened cloth in order to remove any dust on brake parts. Equipment
is available commercially in order to perform this washing function. These wet methods
prevent fibers from becoming airborne.
- Clean the area around the brake hose on the brake caliper. Use Brake
Parts cleaner GM P/N 12345754 or the equivalent.
- Inspect the support rail
surfaces on the brake caliper.
- Inspect the support rail surfaces on the brake caliper mounting
plate.
- Inspect the heat shields. If the heat shields are loose, replace
the shields.
Installation Procedure
- Clean the support rail surfaces of the brake caliper with a wire
brush. File smooth any deep nicks or gouges.
- Clean the support rail surfaces of the brake caliper mounting
plate with a wire brush. File smooth any deep nicks or gouges.
- Apply a thin coat of Brake Caliper Lubricant GM P/N 12377969,
or the equivalent, to the brake caliper support rail surfaces.
- Apply a thin coat of Brake
Caliper Lubricant GM P/N 12377969, or the equivalent, to the
brake caliper mounting plate support rail surfaces.
- Install the brake caliper.
Notice: Make sure the brake hose is not twisted or kinked after
installation. Damage to the hose could result.
- Install the brake hose.
- Loosely assemble the brake hose nut to the brake caliper.
Notice: Use the correct fastener in the correct location. Replacement fasteners
must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant
are identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems.
- Loosely assemble the
brake hose bracket to the brake caliper.
Tighten
• | Tighten the brake hose nut to 19 N·m (14 lb ft). |
• | Tighten the brake hose bracket bolts to 32 N·m (24 lb ft). |
- Install the wheel speed sensor. Refer to
Front Wheel Speed Sensor Replacement
in Antilock
Brakes System.
- Refer to
Brake Caliper and Anchor Plate Wear Adjustment
.
- Apply a thin coat of Brake Caliper Lubricant GM P/N 12377969,
or equivalent, to the brake caliper retainer and the brake caliper spring.
- Tap the brake caliper
retainer (3) and brake caliper spring (2) into place using a
brass punch and a light weight hammer. The hose in the brake caliper retainer
should line up with the threaded hole in the brake caliper mounting
plate (4).
Important: The brake caliper retainer bolt boss must fit in the circular hole in
the brake caliper retainer.
Important: Do not reuse the brake caliper retainer bolt .
- Install a NEW brake caliper retainer bolt.
Tighten
Tighten the brake caliper retainer bolt to 40 N·m (29 lb ft).
- Fill the master cylinder reservoir with brake fluid. Use Brake
Fluid GM P/N 1052535, or the equivalent. Refer to
Master Cylinder Reservoir Filling
.
- Bleed the hydraulic brake system. Refer to
Hydraulic Brake System Bleeding
.
Important: Check the fluid level in the master cylinder reservoir after pumping
the brake pedal.
- Pump the brake pedal several times in order to ensure that the pedal
is firm and the brake linings are adjusted.
- Install the tires and wheels. Refer to the applicable procedure
in Tires and Wheels:
• | Tire and Wheel Removal and Installation (Disc Type-Single Front/Rear) |
• | Tire and Wheel Removal and Installation (Disc Type-Dual) |
• | Tire and Wheel Removal and Installation (Cast Type-Single Front/Rear) |
• | Tire and Wheel Removal and Installation (Cast Type-Dual) |
- Lower the vehicle. Refer to
Lifting and Jacking the Vehicle
.
Caution: Do not move the vehicle until a firm brake pedal is obtained. Failure
to obtain a firm pedal before moving vehicle may result in personal injury.
- Remove the wheel blocks.
Brake Caliper Replacement Rear, Fixed-Mount
Removal Procedure
Caution: Do not move the vehicle until a firm brake pedal is obtained. Failure
to obtain a firm pedal before moving vehicle may result in personal injury.
- Apply the parking brake.
- Block the wheels.
- Remove about 2/3 of the brake fluid from the master cylinder reservoir.
• | Do not completely drain the master cylinder reservoir. |
• | Drain the fluid from the brake caliper bleeder valve. |
• | Drain the fluid into a suitable container. |
- Raise the vehicle. Support the vehicle with safety stands. Refer
to
Lifting and Jacking the Vehicle
in General Information.
- Remove the tires and wheels. Refer to the applicable procedure
in Tires and Wheels:
• | Tire and Wheel Removal and Installation (Disc Type-Single Front/Rear) |
• | Tire and Wheel Removal and Installation (Disc Type-Dual) |
• | Tire and Wheel Removal and Installation (Cast Type-Single Front/Rear) |
• | Tire and Wheel Removal and Installation (Cast Type-Dual) |
- Remove the brake pad retainer spring bolt.
- Remove the brake pad retainer spring.
- Push back
the pistons on one side of the brake caliper.
- Remove the brake pad.
- Push back the pistons on the other side of the brake caliper.
- Remove the remaining brake pad.
- Remove the brake pipe clip nuts and washers from the rear axle
housing studs.
- Remove the brake pipe bolt and 2 gaskets from the caliper.
- Cap or tape the brake pipe fitting in order to prevent contamination.
Notice: Do not loosen or remove the four bolts in the brake caliper bridge area.
The brake caliper bridge bolts may become loose. If the bridge bolts become
loose, replace the brake caliper. Failure to follow these instructions will
cause damage to the brake caliper.
- Remove the brake caliper bolts and washers.
- Remove the brake caliper from the brake caliper mounting plate.
Inspection Procedure
Caution: Avoid taking the following actions when you service wheel brake parts:
• | Do not grind brake linings. |
• | Do not sand brake linings. |
• | Do not clean wheel brake parts with a dry brush or with compressed air. |
Some models or aftermarket brake parts may contain asbestos fibers which can
become airborne in dust. Breathing dust with asbestos fibers may cause serious bodily
harm. Use a water-dampened cloth in order to remove any dust on brake parts. Equipment
is available commercially in order to perform this washing function. These wet methods
prevent fibers from becoming airborne.
- Clean the area around the brake hose on the brake caliper. Use
Brake Parts cleaner GM P/N 12345754 or the equivalent.
- Inspect the heat shields. If the heat shields are damaged, replace
the shields.
- Inspect the brake caliper lining spacers for wear. Replace worn
lining spacers.
Installation Procedure
Notice: Use the correct fastener in the correct location. Replacement fasteners
must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant
are identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems.
- Install the brake
caliper onto the brake caliper mounting plate.
Tighten
Tighten the brake caliper bolts to 425 N·m (313 lb ft).
Install the brake pipe clips onto the rear axle housing studs.
- Install the brake pipe clip washers and nuts onto the rear axle
housing studs.
Tighten
Tighten the brake pipe clip nuts to 17 N·m (13 lb ft).
- Install the brake pipe gaskets and bolt.
Tighten
Tighten the brake pipe bolt to 37 N·m (27 lb ft).
- Install the brake pads.
- Install the brake pad retainer spring.
- Install the brake pad retainer spring bolt.
Tighten
Tighten the brake pad retainer spring bolt to 41 N·m (30 lb ft).
- Fill the master cylinder reservoir with brake fluid. Use Brake
Fluid GM P/N 1052535, or the equivalent. Refer to
Master Cylinder Reservoir Filling
.
- Bleed the hydraulic brake system. Refer to
Hydraulic Brake System Bleeding
.
Important: Check the fluid level in the master cylinder reservoir after pumping
the brake pedal.
- Pump the brake pedal several times in order to ensure that the pedal
is firm and the brake pads are adjusted.
- Install the tires and wheels. Refer to the applicable procedure
in Tires and Wheels:
• | Tire and Wheel Removal and Installation (Disc Type-Single Front/Rear) |
• | Tire and Wheel Removal and Installation (Disc Type-Dual) |
• | Tire and Wheel Removal and Installation (Cast Type-Single Front/Rear) |
• | Tire and Wheel Removal and Installation (Cast Type-Dual) |
- Lower the vehicle. Refer to
Lifting and Jacking the Vehicle
Caution: Do not move the vehicle until a firm brake pedal is obtained. Failure
to obtain a firm pedal before moving vehicle may result in personal injury.
- Remove the wheel blocks.
Brake Caliper Replacement Rear, Rail Slider
Removal Procedure
- Apply the parking brake.
- Block the wheels.
- Remove about 2/3 of the brake fluid from the master cylinder reservoir.
• | Do not completely drain the master cylinder reservoir. |
• | Drain the fluid from the brake caliper bleeder valve. |
• | Drained the fluid into a suitable container. Discard the fluid. |
- Raise the vehicle. Support the vehicle with safety stands. Refer
to
Lifting and Jacking the Vehicle
in General Information.
- Remove the tires and wheels. Refer to the applicable procedure
in Tires and Wheels:
• | Tire and Wheel Removal and Installation (Disc Type-Single Front/Rear) |
• | Tire and Wheel Removal and Installation (Disc Type-Dual) |
• | Tire and Wheel Removal and Installation (Cast Type-Single Front/Rear) |
• | Tire and Wheel Removal and Installation (Cast Type-Dual) |
- Remove the brake caliper
retainer bolt (2).
- Remove the brake caliper retainer (3) and brake caliper
spring (4) using a brass punch.
- Compress the pistons, using the following method. Use a C-clamp between
the inner brake caliper housing and the outer brake pad.
- Use screwdrivers to pry
between the outer brake caliper housing and the outer brake pad.
- While compressing the pistons, watch the reservoir for possible
brake fluid overflow. The inner brake pad may stay on the brake caliper mounting
plate (Bendix® caliper).
- Remove the wheel speed sensor. Refer to
Rear Wheel Speed Sensor Replacement
in Antilock
Brakes System.
- Disconnect the brake hose.
- Cap or tape the brake hose fitting in order to prevent contamination.
Notice: Do not allow calipers to hang from the flexible hoses. Doing so can
damage the hoses.
- Remove the brake caliper.
Inspection Procedure
Caution: Avoid taking the following actions when you service wheel brake parts:
• | Do not grind brake linings. |
• | Do not sand brake linings. |
• | Do not clean wheel brake parts with a dry brush or with compressed air. |
Some models or aftermarket brake parts may contain asbestos fibers which can
become airborne in dust. Breathing dust with asbestos fibers may cause serious bodily
harm. Use a water-dampened cloth in order to remove any dust on brake parts. Equipment
is available commercially in order to perform this washing function. These wet methods
prevent fibers from becoming airborne.
- Clean the area around the brake hose on the brake caliper. Use
Brake Parts cleaner GM P/N 12345754 or the equivalent.
- Inspect the support rail surfaces on the brake caliper.
- Inspect the support rail surfaces on the brake caliper mounting
plate.
- Inspect the heat shields. If the heat shields are loose, replace
the shields.
Installation Procedure
- Clean the support rail
surfaces of the brake caliper with a wire brush. File smooth any deep nicks
or gouges.
- Clean the support rail surfaces of the brake caliper mounting
plate with a wire brush. File smooth any deep nicks or gouges.
- Apply a thin coat of Brake Caliper Lubricant GM P/N 12377969,
or the equivalent, to the brake caliper support rail surfaces.
- Apply a thin coat of Brake Caliper Lubricant GM P/N 12377969,
or the equivalent, to the brake caliper mounting plate support rail surfaces.
Notice: Make sure the brake hose is not twisted or kinked after
installation. Damage to the hose could result.
- Install the brake hose.
- Loosely assemble the brake hose nut to the brake caliper.
Notice: Use the correct fastener in the correct location. Replacement fasteners
must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant
are identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems.
- Loosely assemble the
brake hose bracket to the brake caliper.
Tighten
• | Tighten the brake hose nut to 19 N·m (14 lb ft). |
• | Tighten the brake hose bracket bolts to 32 N·m (24 lb ft). |
- Install the wheel speed sensor. Refer to
Rear Wheel Speed Sensor Replacement
in Antilock
Brakes System.
- Apply a thin coat of Brake Caliper Lubricant GM P/N 12377969,
or equivalent, to the brake caliper retainer and the brake caliper spring.
- Tap the brake caliper retainer (3) and brake caliper spring (4)
into place using a brass punch and a light weight hammer. The hose in
the brake caliper retainer should line up with the threaded hole in the
brake caliper mounting plate (1).
Important: The brake caliper retainer bolt boss must fit in the circular hole in
the brake caliper retainer.
- Do not reuse the brake caliper retainer bolt .
Install a NEW brake caliper retainer bolt (1).
Tighten
Tighten the brake caliper retainer bolt to 40 N·m (29 lb ft).
- Fill the master cylinder reservoir with brake fluid. Use Brake
Fluid GM P/N 1052535, or the equivalent. Refer to
Master Cylinder Reservoir Filling
.
- Bleed the hydraulic brake system. Refer to
Hydraulic Brake System Bleeding
.
Important: Check the fluid level in the master cylinder reservoir after pumping
the brake pedal.
- Pump the brake pedal several times in order to ensure that the pedal
is firm and the brake linings are adjusted.
- Install the tires and wheels. Refer to the applicable procedure
in Tires and Wheels:
• | Tire and Wheel Removal and Installation (Disc Type-Single Front/Rear) |
• | Tire and Wheel Removal and Installation (Disc Type-Dual) |
• | Tire and Wheel Removal and Installation (Cast Type-Single Front/Rear) |
• | Tire and Wheel Removal and Installation (Cast Type-Dual) |
- Lower the vehicle. Refer to
Lifting and Jacking the Vehicle
.
Caution: Do not move the vehicle until a firm brake pedal is obtained. Failure
to obtain a firm pedal before moving vehicle may result in personal injury.
- Remove the wheel blocks.