Convert your 1973-1987 Chevy/GMC 1500 4WD rear drums with an SSBC-USA Sport R1 rear disc brake conversion kit built around billet aluminum calipers, internal parking brakes, and 11.4-inch DS rotors.
- Fits select 1973-1987 Chevrolet/GMC 1/2-ton 4WD truck rear applications
- Includes Sport R1 single-piston billet aluminum rear calipers with built-in parking brakes in black finish
- Includes 11.4-inch dimple-drilled and slotted rear rotors, semi-metallic brake pads, braided stainless flex hoses, hard lines, axle shims, e-coated brackets, stainless spacers, parking brake cable adapters, and required hardware
- Designed for compatible stock rear axle applications
- Fits many 15-inch wheels when clearance is confirmed
- Calipers are 100% Made in the USA by SSBC-USA
Verify axle, wheel clearance, and parking brake compatibility before ordering. For fitment questions, call SSBC-USA tech support at 716-775-6700.
✔ Fitment Confidence: Not sure whether this product is correct for your vehicle or current brake setup? Call our tech team at (716) 775-6700 before ordering so we can help confirm the correct application.
🚚 Shipping: This item is configured to order at our Elma, NY facility — production and configuration typically take 5–10 business days. Supply constraints can occasionally cause temporary delays beyond this window. Need an update on your order? Contact us at (716) 775-6700 or orders@ssbc-usa.com with your order number and we'll get you an answer right away. Your exact shipping cost is calculated at checkout based on your address.
Frequently Asked Questions
How do I confirm this brake kit fits my vehicle?
Review the fitment details and Fitment Confidence section above. Model year, drivetrain, axle or hub configuration, rotor dimensions, parking-brake style, and wheel clearance can affect fitment. If any part of your setup is uncertain, call the SSBC-USA technical team at (716) 775-6700 before ordering.
What is included with this kit?
Use the Product Details, Key Features, or What's Included information above for the exact components supplied with this part number. Package contents vary by application and configuration.
Should wheel clearance be checked before ordering?
Yes. Brake-kit clearance depends on the specific wheel diameter, spoke profile, and offset. Confirm the clearance requirements for your application before ordering.
How long does this product take to ship?
This product is configured to order at the SSBC-USA facility in Elma, New York. Production and configuration typically take 5–10 business days, although temporary supply constraints can occasionally extend that timeframe.
