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Product details
Wilwood Dynalite rear drag brakes for Chevy 12-bolt C-clip-eliminator ends. Resolve the conflicting offset before ordering the drilled-rotor kit. The manufacturer is Wilwood Engineering of Camarillo, California, established in 1977 by Bill Wood. It designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings and lines for motorsport, street-performance and specialized vehicles; suitability depends on the full brake-system configuration.
Technical Details
- Manufacturer part number: 140-4545-BD
- Caliper construction: Caliper bodies are forged aluminum, finished in type iii anodized; each has 4 pistons made from stainless.
- Rotor dimensions and face: The drilled option uses steel, a 11.44-inch outside diameter and a 0.35-inch running width. Rotor construction is solid.
- Hydraulic and mounting layout: Brake-fluid connection: 1/8-27 NPT; caliper mounting arrangement: lug.
- Axle mounting: 12 Bolt C-Clip Eliminator; Offset requires confirmation: manufacturer product page and instruction cover disagree.
- Rotor/hat wheel-stud clearance pattern: 5 X 4.5 in; 5 X 4.75 in; 5 X 5 in (5 X 114.3 mm; 5 X 120.65 mm; 5 X 127 mm)
- Wheel fit: Use the manufacturer wheel template even when the wheel is 15 inches or larger.
- Package scope: Supplied: mounting hardware. Not included: master cylinder, booster, spindles, flexible brake lines, hubs.
- Parking brake: No parking-brake mechanism supplied
Fitment & Compatibility
Compare the exact eliminator, housing-end drawing and axle dimensions with DS-255 and the worksheet. The current kit page lists 2.91-inch offset while DS-255 states 2.81 inches; Wilwood must reconcile the required configuration from measurements before ordering. The modified-vehicle rows below do not establish axle-end compatibility. This is a drag-race kit with no parking-brake mechanism.
Manufacturer Documents
Wilwood kit specifications and component list
Manufacturer Warning
WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.
Discuss the current brake arrangement with PMB Performance if a mounting or clearance requirement is uncertain. More than 20 years of experience informs our parts and fitment support.
Vehicle Applications
| Years | Make | Model | Model option | Front brakes | Rear brakes | Kit application | Notes |
|---|---|---|---|---|---|---|---|
| 1964-1968 | Chevrolet | Chevelle | w/ Ridetech Hub Spindle | Drop | Drum | Rear Kit | 1, 2, 3 |
| 1964-1969 | Chevrolet | Chevelle | w/ Ridetech Pin Spindle | Drop | Drum | Rear Kit | 1, 2, 3 |
| 1964 | Oldsmobile | 442 | w/ Ridetech Hub Spindle | Drop | Drum | Rear Kit | 1, 2, 3 |
| 1964-1969 | Pontiac | Beaumont | w/ Ridetech Hub Spindle | Drop | Drum | Rear Kit | 1, 2, 3 |
| 1964-1969 | Pontiac | Beaumont | w/ Ridetech Pin Spindle | Drop | Drum | Rear Kit | 1, 2, 3 |
| 1967-1969 | Chevrolet | Camaro | w/ Ridetech Hub Spindle | Drop | Drum | Rear Kit | 1, 2, 3 |
| 1967-1969 | Chevrolet | Camaro | w/ Ridetech Pin Spindle | Drop | Drum | Rear Kit | 1, 2, 3 |
| 1970 | Oldsmobile | 442 | w/ Ridetech Pin Spindle | Drop | Drum | Rear Kit | 1, 2, 3 |
| 1973-1974 | Buick | Apollo | w/ Ridetech Hub Spindle | Drop | Drum | Rear Kit | 1, 2, 3 |
| 1973-1974 | Buick | Apollo | w/ Ridetech Pin Spindle | Drop | Drum | Rear Kit | 1, 2, 3 |
Application Notes
- Universal Flexline kits available: 220-7056 (14"), 220-7699 (16") or 220-8307 (18"). Choose correct length for your application.
- This rear service-brake kit has no parking-brake mechanism and includes no parking-brake cables. A separate compatible parking-brake solution is required where applicable.
- Line kit included (manufacturer): None
