Front Brake Pad Replacement

Replace front brake pads on a 2008 Dodge Viper, including caliper retraction, hardware cleaning, and proper torque procedures for this high-performance braking system.

Warnings

Tools required

Parts

• Front brake pad set (left and right) × 1 — Use OEM specification or high-performance equivalent rated for Viper application
• Brake hardware/anti-rattle clip kit × 1 — Often included with pad set

Fluids

• DOT 4 brake fluid — 0.25 qt

Preparation

1. Park vehicle on level, solid ground and place transmission in first gear (manual) or Park (if applicable).
2. Place tire chocks behind rear wheels to prevent rolling.
3. Loosen front wheel lug nuts 1/4 turn while vehicle is on ground (do not remove).
4. Lift front of vehicle using floor jack at designated front jacking point and secure on jack stands at front suspension pickup points.
5. Remove front wheels completely and set aside.
6. Verify brake fluid reservoir level in engine compartment; if near MAX line, siphon out approximately 2-3 oz to prevent overflow when compressing caliper pistons.

Procedure

1. 1

   Inspect brake system condition
   Before beginning disassembly, visually inspect the brake rotor condition for scoring, cracking, or excessive wear. Measure rotor thickness with a micrometer if available and compare to minimum specification (typically stamped on rotor hat). Check brake lines and caliper for any signs of fluid leakage. If rotors are below minimum thickness, severely scored, or if any leaks are present, additional service beyond pad replacement is required.
2. 2

   Remove caliper slide pin bolts
   The 2008 Viper uses a fixed-mount Brembo caliper (no slide pins). Locate the two caliper-to-knuckle mounting bolts on the inboard side of the caliper. Using the correct hex/Allen size (verify against factory spec), remove both mounting bolts while supporting the caliper by hand to prevent it from falling. Lift the caliper straight off the rotor rather than pivoting it.
   ⚠Do not allow the caliper to hang by the brake hose, as this can damage the hose internally and cause future brake failure.
3. 3

   Support and secure caliper
   Carefully lift the caliper straight off the brake rotor. Use a bungee cord, wire hanger, or mechanics wire to support the caliper by hanging it from a nearby suspension component or chassis point. Ensure no tension is placed on the rubber brake hose. The caliper should hang freely without stress on the hydraulic line.
4. 4

   Remove old brake pads and hardware
   Remove the outboard and inboard brake pads from the caliper body (fixed Brembo calipers retain the pads internally via retaining pins and anti-rattle clips/springs). Note the orientation and position of any anti-rattle clips, shims, or springs attached to the pads. Remove the pad retaining clips or hardware from the caliper bracket—these small metal clips or springs fit into grooves on the bracket abutments. Set aside old pads for comparison with new pads to verify correct parts.
5. 5

   Clean caliper bracket and slide pins
   Using a wire brush and brake cleaner, thoroughly clean the caliper bracket abutment surfaces where the pad backing plates contact the bracket. Remove all rust, old grease, and brake dust buildup. Clean the caliper slide pin bores in the bracket. If slide pins show corrosion or binding, remove them completely from the bracket, clean with brake cleaner, inspect the rubber boots for tears, and apply fresh silicone brake grease before reinstalling.
6. 6

   Compress caliper pistons
   With the caliper supported and pads removed, use a pad spreader or wide flat tool to push all opposed pistons (both inboard and outboard banks) evenly back into their bores. Do not use a C-clamp against the caliper body, as a fixed 4-piston caliper has pistons on both sides. Retract pistons slowly and evenly while watching the brake fluid reservoir to ensure it does not overflow. This creates clearance for the thicker new brake pads. retract. This step is necessary to create clearance for the thicker new brake pads.
   ⚠Never compress pistons against the piston rubber dust boot, as this can damage the seal. Use a flat surface against the piston face only.
7. 7

   Install new pad hardware and clips
   Install the new anti-rattle clips and pad retaining hardware onto the caliper bracket in the same positions as the original hardware. If new hardware was included with the pad set, discard the old clips and install the new ones. Ensure clips are fully seated in their bracket grooves. Apply a thin layer of silicone brake grease to the bracket abutment surfaces where the pad backing plates will slide.
8. 8

   Install new brake pads
   Install the new inboard brake pad into the caliper bracket, ensuring it seats properly against the retaining clips and the pad ears fit into the abutment slots. Install the outboard pad in the same manner. Verify both pads are secure and properly positioned with friction material facing the rotor surfaces. Apply a thin layer of anti-seize or silicone brake grease to the pad backing plate edges where they contact the caliper bracket (do NOT apply to friction surfaces).
9. 9

   Reinstall caliper over pads
   Remove the support wire/bungee holding the caliper. Carefully guide the caliper back into position over the new brake pads and rotor, aligning the slide pin bolt holes in the caliper with the slide pin bores in the bracket. Ensure the brake hose does not twist or kink during this process. The caliper should fit smoothly over the compressed pistons and new pads.
10. 10

    Install and torque slide pin bolts
    Insert both caliper-to-knuckle mounting bolts and thread them by hand to avoid cross-threading. Using a torque wrench, tighten both mounting bolts to the factory-specified torque (verify exact value in the service manual — Viper Brembo caliper mounting bolts are torqued substantially higher than a floating-caliper slide pin, do NOT use 26 lb-ft). Verify both bolts are properly torqued and the caliper is rigidly mounted (a fixed caliper should not move). when pressed.
    Torque spec

    Caliper Slide Pin Bolts35 Nm (26 lb-ft)
11. 11

    Repeat process for opposite side
    Perform steps 1 through 10 on the opposite front wheel to replace the second set of brake pads. Both front wheels must have new pads installed together to maintain balanced braking performance.
12. 12

    Reinstall wheels and torque lug nuts
    Reinstall both front wheels onto the hubs, threading lug nuts by hand to ensure proper seating. Using a torque wrench and the correct socket size (verify against factory spec), tighten the lug nuts to the factory-specified torque (verify — approximately 100 lb-ft for this platform) in a star pattern to ensure even pressure distribution. Do not use an impact wrench for final torque.
    Torque spec

    Wheel Lug Nuts140 Nm (103 lb-ft)
13. 13

    Pump brake pedal to seat pads
    Before lowering vehicle, sit in driver's seat and pump the brake pedal slowly and firmly 10-15 times until pedal becomes firm and reaches normal height. This extends the caliper pistons to bring the new pads into contact with the rotors. Check pedal feel—it should be firm and not sink to the floor. If pedal remains soft after pumping, check for air in system or caliper issues.
    ⚠️DO NOT attempt to drive the vehicle until brake pedal is firm. A soft or spongy pedal indicates incomplete pad seating or air in the system and requires further service.

Reassembly

1. Lower vehicle from jack stands and remove stands, then lower completely to ground.
2. With vehicle on ground, re-torque all wheel lug nuts to 140 Nm (103 lb-ft) in star pattern to verify proper seating.
3. Check brake fluid reservoir level and top off with DOT 4 brake fluid to MAX line if needed—do not overfill.
4. Start engine and apply firm brake pressure—listen for any unusual noises and verify no fluid leaks around calipers.

Verification

• Before driving, pump brake pedal and verify firm, consistent pedal feel with no excessive travel or sponginess.
• Perform a low-speed test drive (5-10 mph) in a safe area and apply brakes gently to verify even braking with no pulling to either side.
• Check for any unusual noises such as grinding, squealing, or clicking during brake application.
• Verify brake fluid level in reservoir remains at proper level after test drive.
• Re-check wheel lug nut torque after 50-100 miles of driving.
• Perform proper pad bedding procedure: 200-300 miles of moderate use followed by 8-10 controlled stops from 60 mph with 30 seconds of cooling between stops, avoiding full ABS engagement.

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