Overview
The Baer Brakes SS4 Plus 4302334HO is a rear disc brake kit finished in Hugger Orange, pairing a 4-piston S4 caliper with a 13 inch two-piece slotted and drilled rotor. The kit is intended for rear axles fitted with GM 10/12 bolt C-clip housing ends in the small car pattern, with wheels on a 5×4.75 or 5×5 inch bolt circle.
The backing plate doubles as the caliper mount and houses a one-piece park brake shoe assembly. The caliper is made in Phoenix, AZ from US-sourced forged or billet aluminum, and it is finished in Hugger Orange.
Key features
- Hugger Orange powder coated finish
- Four-piston floating S4 caliper with dual seals
- Hard anodized aluminum pistons paired with stainless steel abutments
- Two-piece slotted, drilled, zinc-plated rotor with billet aluminum hat and vented construction
- Stainless braided, DOT approved hoses and hardware
- Park brake shoe assembly integrated into the backing plate
Choosing the right setup
Brake fluid is worth attention on any disc conversion. Old fluid absorbs moisture over time, which can lower its boiling point and make the pedal feel soft under heavy use. Flushing the system while the new hoses and caliper are installed keeps the setup clean from the start.
Finish is mostly a visual choice, but powder coat holds up best when the caliper is kept free of road grit and cleaned with mild soap. Hard anodized pistons and stainless hardware resist corrosion, which helps the kit age well in wet or salted conditions. Check that each hose clears the spring and control arm before tightening the fittings.
- Flush old brake fluid during installation
- Clean the caliper coating with mild soap
- Inspect hoses for chafing after the first drives
- Re-torque caliper bolts after initial bedding
- Match pad compound to your driving style
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302334HO |
| UPC | 90127953396 |
| Sold as | Kit |
| Axle | Rear |
| Axle flange | GM 10/12 bolt C-clip, small car pattern |
| Wheel bolt pattern | 5 lug, 5×4.75/5×5.00 |
| Caliper | S4, 4-piston, floating |
| Caliper color | Hugger Orange |
| Rotor outside diameter | 13.0 inch |
| Rotor thickness | 0.81 |
| Rotor type | 2-piece, vented |
| Rotor surface | Slotted, drilled and zinc plated |
| Pad type | DR1-C (FMSI) |
| Minimum wheel diameter | 17.0 inch |
| Brake hose | Steel braided, DOT approved |
| Park brake | Included; park brake cables not included |
| Template | S135H |
| Grade | Performance |
| Country of origin | USA |
Vehicle fitment
The axle flange is the GM 10/12 bolt C-clip small car pattern, the wheel bolt pattern is 5×4.75/5×5.00, and the minimum wheel diameter is 17.0 inch, so compare these measurements with your axle and wheels.
Installation notes
Replacement pads should match DR1-C, the FMSI code for this kit, and should be seated with moderate stops before relying on full braking. Park brake cables are not supplied, so the parking function depends on hardware you will source yourself. Use the S135H template to check the planned wheel before mounting.
What’s included
The S4 caliper, the two-piece rotor pre-assembled with NAS high grade stainless hardware, the backing plate with 1-piece park brake shoe assembly, and stainless braided hoses with hardware.
Not included: park brake cables.
