Brake Caliper Bracket

Replacement of the brake caliper bracket (caliper mounting bracket) on a 1992 Dodge Viper, requiring caliper removal, bracket removal from the steering knuckle, and proper torque procedures during reinstallation.

Warnings

Tools required

Parts

• Brake caliper bracket (caliper mounting bracket) × 1 — Use OEM specification or quality aftermarket
• Brake pad hardware clips × 1 — Typically included with bracket or pad set
• Copper crush washers (if disconnecting brake line) × 2 — Use OEM specification

Fluids

• brake — 0.25 qt

Preparation

1. Park vehicle on level, solid ground and engage parking brake.
2. Chock the rear wheels securely.
3. Loosen wheel lug nuts 1/2 turn while wheel is on ground.
4. Raise front of vehicle with floor jack at designated jacking point and secure on jack stands rated for vehicle weight.
5. Remove wheel completely and set aside.
6. Inspect brake components for wear, damage, or fluid leaks before beginning disassembly.
7. Have DOT 3 brake fluid available if you will be opening the hydraulic system (optional for bracket replacement).

Procedure

1. 1

   Compress brake caliper piston
   If the caliper is a floating design, use a C-clamp or piston tool to compress the piston into its bore against the outer pad. NOTE: The 1992 Viper uses fixed opposed-piston calipers—compress each piston individually with a suitable spreader tool, and do not force pistons against a single pad. Do not compress rapidly as this can damage seals. This step makes caliper removal easier and prevents brake fluid overflow at the master cylinder reservoir. Do not compress rapidly as this can damage seals.
2. 2

   Remove caliper slide pin bolts
   Locate the caliper mounting bolts that secure the caliper to the bracket/knuckle. Note: The 1992 Viper uses fixed opposed-piston calipers, which do not use slide pins—verify caliper type and bolt configuration against the factory service manual before proceeding. These are located on the inboard side of the caliper assembly. Remove both slide pin bolts completely using an appropriate socket. Note the condition of the bolts and any thread locker residue for reassembly.
3. 3

   Remove and support brake caliper
   Carefully lift the caliper off the bracket and rotor. Do NOT disconnect the brake hose unless absolutely necessary (bracket replacement typically does not require hydraulic disconnection). Use wire or a bungee cord to securely hang the caliper from the suspension or frame. Ensure there is no tension or stress on the brake hose. The caliper must be supported so it does not hang by the hose.
   ⚠️Allowing the caliper to hang by the brake hose can cause internal hose damage and brake failure.
4. 4

   Optional: Disconnect brake hydraulic line
   If the bracket damage or replacement requires complete caliper removal, disconnect the brake hose banjo bolt at the caliper. Place a drain pan underneath. Use a line wrench to prevent rounding the fitting. Remove the banjo bolt and immediately cap or plug both the hose and caliper port to prevent fluid loss and contamination. Note the position of the two copper crush washers (one on each side of the banjo fitting) and discard them—new washers must be used on reassembly.
   ⚠Opening the hydraulic system requires subsequent bleeding. Only disconnect if necessary for bracket access.
5. 5

   Remove brake pads and hardware
   Remove both brake pads from the caliper bracket. Remove any anti-rattle clips, shims, or hardware springs attached to the bracket. Note the orientation and position of all hardware for correct reassembly. Inspect pads for remaining thickness; if replacing the bracket, consider replacing pads as a set.
6. 6

   Remove caliper bracket mounting bolts
   Locate the caliper bracket bolts that secure the bracket to the steering knuckle (verify bolt count against the factory service manual). These are typically larger bolts than the caliper mounting fasteners and may require significant force to loosen. Use a breaker bar if necessary. Remove both bracket mounting bolts completely.
7. 7

   Remove caliper bracket from knuckle
   Pull the caliper bracket away from the steering knuckle and rotor. Inspect the bracket mounting surface on the knuckle for damage, corrosion, or debris. Clean the mounting surface with a wire brush and brake cleaner if necessary. Inspect the bracket bolt threads in the knuckle for damage.
8. 8

   Prepare new bracket and mounting surfaces
   Clean the mounting surfaces on the steering knuckle thoroughly with brake cleaner and a wire brush. Remove any corrosion, old thread locker, or debris. Ensure the mounting surface is flat and clean. Inspect the new caliper bracket for any shipping damage or defects. Verify that any hardware clips or abutment hardware are properly installed on the new bracket.
9. 9

   Install caliper bracket to knuckle
   Position the new caliper bracket onto the steering knuckle, aligning the bolt holes. Apply medium-strength thread locker to the threads of both bracket mounting bolts. Start both bolts by hand to ensure proper thread engagement. Torque the bracket bolts to specification in a cross pattern (alternate between bolts) to ensure even seating.
   ⚠These bolts are critical fasteners. Use a calibrated torque wrench and apply thread locker as specified.
   Torque spec

   Bracket Bolts102 Nm (75 lb-ft)
10. 10

    Install brake pad hardware and pads
    Install all anti-rattle clips, abutment hardware, and shims to the new bracket in the same positions noted during removal. Apply a thin coat of silicone brake grease to the pad backing plate contact points on the bracket (where the pad ears slide). Install both brake pads into the bracket, ensuring they are properly seated in the hardware clips.
11. 11

    Reinstall brake caliper
    Remove the caliper from its support wire or bungee. Position the caliper over the brake pads and rotor, aligning the slide pin bolt holes with the bracket. Apply silicone brake grease to the slide pin bolt threads and contact surfaces. Install both slide pin bolts by hand first, then torque to specification.
    Torque spec

    Caliper Slide Pin Bolts35 Nm (26 lb-ft)
12. 12

    Optional: Reconnect brake hydraulic line
    If the brake hose was disconnected in Step 4, reconnect it now. Install NEW copper crush washers on both sides of the banjo fitting (never reuse old washers). Thread the banjo bolt by hand to start, then torque to specification using a line wrench. The system will require bleeding after this step.
    ⚠Always use new copper crush washers. Reusing old washers will cause leaks.
    Torque spec

    Brake Hose Banjo Bolt31 Nm (23 lb-ft)
13. 13

    Bleed brake system (if hydraulic system opened)
    If the brake line was disconnected, the brake system MUST be bled to remove air. Follow the factory-specified bleeding sequence for the 1992 Viper (verify against service manual). Generally, bleed the wheel farthest from the master cylinder first, then work toward the nearest, but confirm the correct order for this vehicle's brake circuit configuration. Use the two-person method or a vacuum bleeder. Open the bleeder screw, pump the brake pedal until fluid flows without bubbles, close the bleeder screw, and repeat. Torque bleeder screws to specification. Check master cylinder fluid level frequently and top off with fresh brake fluid of the grade specified for the 1992 Viper (verify DOT 3/DOT 4 requirement against the owner's manual/service manual). Do not allow the reservoir to run dry.
    ⚠️Improper bleeding will result in air in the brake lines and brake failure. Pedal must be firm before driving vehicle.
    Torque spec

    Bleeder Screw15 Nm (11 lb-ft)
14. 14

    Reinstall wheel and lower vehicle
    Install the wheel onto the hub, aligning the lug nut holes. Thread all lug nuts by hand to prevent cross-threading. Tighten lug nuts in a star pattern with hand tools while the wheel is still off the ground. Lower the vehicle until the wheel just contacts the ground. Torque all lug nuts to specification in a star pattern.
    Torque spec

    Wheel Lug Nuts140 Nm (103 lb-ft)

Reassembly

1. Reinstallation follows the reverse order of removal with the following critical notes.
2. ALWAYS use new copper crush washers if the hydraulic system was opened.
3. Apply medium-strength thread locker to caliper bracket mounting bolts.
4. Apply silicone brake grease to caliper slide pin bolts and pad contact points on bracket.
5. Torque all fasteners to specification using a calibrated torque wrench—do not estimate.
6. If the hydraulic system was opened, bleeding is mandatory—do not skip this step.
7. Check brake fluid level in master cylinder reservoir and top off with fresh DOT 3 brake fluid to the MAX line.

Verification

• With the engine off, pump the brake pedal several times. The pedal should become firm and hold steady pressure. A soft or spongy pedal indicates air in the system.
• Check all brake line connections for leaks. Look for fluid seepage at the banjo bolt (if disconnected) and around the caliper.
• Check the master cylinder reservoir fluid level—it should be at the MAX line.
• Start the engine and apply firm brake pedal pressure. The pedal should remain firm. Re-check all connections for leaks under pressure.
• Perform a slow-speed test drive in a safe area (parking lot). Test brakes at low speed to verify proper operation before highway use.
• Listen for any unusual noises (grinding, squealing) that might indicate improper pad installation or contamination.
• After the first 50-100 miles, re-check all brake component mounting bolts for proper torque.
• If you opened the hydraulic system, monitor brake pedal feel for the next several days. Any change in pedal firmness may indicate air in the system or a leak.

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