1971-1976 Full Size GM Rear Brake Systems – Baer – 13″ Rear SS4+ Brake System with Park Brake



Due to the large number of variations available with this product please call to place an order.

The Base Price for the colors listed is $1595 with additional price options listed in the drop down menus.

Additional colors may be available to be custom ordered from the manufacturer. 


This system features the S4 4-piston caliper mounted to a 13″, 2 piece slot, drill, zinc plated rotor. The S4 caliper has D.O.T compliant dust and weather seals and uses the popular DR1 or HB100 pad type. Rotors are pre-assembled with NAS high grade stainless hardware. Baer’s unique backing plate not only acts as a caliper mount, but also houses a modern 1-piece park brake shoe assembly. Stainless braided hoses are also included. The 13” SS4+ fits most 17” or larger wheels.

Rotor Size/Type:

13″ x .810″, 2-piece
| Replacement Rotor Rings:
6910922 (Left) / 6920922 (Right)
| Caliper/Piston Count/Mount Type:
S4 / 4-piston / Lug
| Replacement pads:
| Minimum Wheel Size:
17″ or larger (Use template to verify fitment, link below)
| System Includes:
Calipers, Brake Pads, Rotor & Hat assemblies, Brackets, Park brake assembly, Stainless braided brake hoses & system hardware. System incorporates Baer’s unique Verislide design allowing the calipers to float with the factory c-clip axles, Does not include park brake cables
Designed for c-clip rear end
| Applications:
– 1971-76 GM full size passenger cars with OE 10/12 Bolt c-clip rear end
Remaster sizing (which one do I order?)
Bore SizeManual BrakePower BrakeHydroboost
1 1/8″
| Additional Notes:
  • 15/16″ can be used Power or Manual.  Customers that prefer softer pedal feel with less pedal effort use 15/16″ for Power Brakes
  • 1″ with Power is based on good engine vacuum numbers, and that the booster is working corretly
  • Drag race applications with dual rear calipers should use a 1 1/8″ Bore Remaster
  • Port Configuration is based off Drivers seat position.  LP – Left port (Fender side), RP- Right Port (Motor Side)
  • Most all applications will use LP exit.  Fox Mustangs (1979-1993) will use RP due to shock tower clearance

Additional information

Weight50 lbs
Dimensions24 × 12 × 12 in
Caliper Color

Red, Black, Silver

Rotor Finish

Slot, Drill, w/ Zinc, Slot Only NO Zinc, Plain NO Zinc (-60.00)