Overview
The Stainless Steel Brakes A130-4 is a Sport R1 Plus rear disc brake conversion kit with aluminum calipers for the 1976–1986 Jeep CJ7. It is designed for an AMC 20 floating axle.
The Sport R1 caliper is a 54mm single-piston aluminum design with a built-in parking brake, aimed at better braking and a firmer pedal feel than factory setups.
About this part
The Sport R1 caliper family includes a car version and a truck version, and the two differ in housing and parts. The car version has a forged aluminum housing with stainless steel internals and shares pads, slider pins and bushings with an early GM rear caliper. The truck version has a billet aluminum housing and uses front caliper parts from a 95-98 GM half ton truck. Confirm which version this kit uses before matching pads or hardware.
Key features
- Sport R1 Plus rear disc brake conversion kit
- Aluminum calipers
- Built for the AMC 20 floating axle
- 54mm single-piston caliper with a built-in parking brake
- Standard rotor type
- Aftermarket caliper type
- Natural finish
Rear caliper choices
A rear disc conversion puts a caliper at each wheel, and the caliper type sets the feel and the pad options. Aluminum aftermarket calipers are commonly chosen for their lighter weight and finish, while the housing and internals decide how well the piston seals hold over time.
On an older CJ7, the rear axle, the wheel hub and the parking brake all come into play when fitting a conversion. Confirm the axle type before choosing pads, and check the parking brake cable routing after installation so it works with the new calipers.
- Confirm the axle before ordering pads or brackets
- Check caliper seals for leaks after bleeding
- Route the parking brake cable clear of moving parts
- Keep spare pads with the same friction material
Specifications
| Brand | Stainless Steel Brakes |
|---|---|
| Part number | A130-4 |
| UPC | 700007293571 |
| Product type | Rear disc brake conversion kit (Sport R1 Plus) |
| Caliper material | Aluminum |
| Caliper type | Aftermarket |
| Rotor type | Standard |
| Brake position | Rear |
| Axle | AMC 20 floating axle |
| Color | Natural |
| Fitment type | Direct fit |
| Sport R1 caliper (per SSBC) | 54mm single piston with built-in parking brake |
Vehicle fitment
The manufacturer fitment list for the Stainless Steel Brakes A130-4 includes the following vehicles and trims:
- 1976–1986 Jeep CJ7 (Base, Golden Eagle, Golden Hawk, Laredo, Limited, Renegade)
The kit fits the CJ7 only and is set up for an AMC 20 floating axle. Match your CJ7 year, model and trim before ordering.
What’s included
The kit is a Sport R1 Plus rear disc conversion with aluminum calipers.
Not included: Check the package contents against your installation before starting.









