Overview
The Baer Brakes 4302332CY is a complete rear disc brake kit built around an S4 4-piston caliper finished in Comp Yellow. Baer built it for rear axles with a GM small pattern 10/12 bolt bearing-on-axle flange and a 5×4.75/5×5.00 wheel bolt pattern, pairing a 12 inch slotted, drilled, zinc plated rotor with a backing plate that houses a park brake shoe assembly.
The caliper is CNC machined from US sourced forged or billet aluminum and uses hard anodized aluminum pistons with stainless steel abutments. Dual dust, weather and pressure seals protect the caliper. The kit is designed around the popular DR1 or HB100 pad types, with DR1-C as the FMSI number. Stainless braided hoses are included.
Not every wheel style will clear, so use the S113E template to compare it with the wheel you plan to use. The SS4 fits most 16 inch or larger wheels, and the minimum wheel diameter is 16.0 inch.
Key features
- S4 2-piece, 4-piston caliper in Comp Yellow with a powder coated finish
- Hard anodized aluminum pistons with stainless steel abutments and noise suppression clips
- Dual dust, weather and pressure seals
- 12.0 inch vented, 1-piece slotted, drilled, zinc plated rotor
- Backing plate that houses a 1-piece park brake shoe assembly
- Stainless braided hoses included
Before you buy
A bearing-on-axle rear end carries the hub load through the axle itself, so the brake kit has to match that flange style rather than a C-clip design. Before ordering, measure the flange and check the bolt pattern against the wheel hub. Mixing up the two styles is a frequent cause of returned parts.
Rear kits like this often replace more than the rotor and caliper. Park brake cables, hub bearings and axle seals are worth inspecting while the work is already underway. Stretched or corroded cables may not return the shoe to rest properly, and a worn bearing will shorten the life of a new rotor.
- Confirm the flange style before cutting parts from the old setup
- Inspect park brake cables for stretching, rust and sticking
- Check wheel bearings for play while the hub is off
- Replace brake hoses that show cracking or bulging
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302332CY |
| UPC | 90127952115 |
| Caliper | S4, 2-piece, fixed |
| Caliper color | Comp Yellow |
| Piston quantity | 4 |
| Rotor outside diameter | 12.0 inch |
| Rotor construction | Vented, 1-piece |
| Rotor surface | Slotted, drilled and zinc plated |
| Rotor thickness | 1.02 |
| Axle | Rear |
| Axle flange | GM small pattern 10/12 bolt bearing on axle (Buick/Olds/Pontiac) |
| Wheel bolt pattern | 5×4.75/5×5.00 |
| Lug count | 5 lug |
| Minimum wheel diameter | 16.0 inch |
| Pad FMSI number | DR1-C |
| Template | S113E |
| Park brake | Shoe assembly included |
| Brake hose DOT approved | Yes |
| Grade type | Performance |
| Sold as | Kit |
| Country of origin | USA |
Vehicle fitment
It fits rear axles with a GM small pattern 10/12 bolt bearing-on-axle flange and a 5×4.75/5×5.00 wheel bolt pattern. Check your vehicle’s year, model and trim against the kit before ordering.
A bearing-on-axle small pattern flange is a different style from the C-clip flange on the Grabber Blue version, so match the flange type exactly.
Installation notes
The park brake shoe assembly is included, but park brake cables are not, so cables must be sourced separately. Use the S113E template to check wheel clearance before fitting the caliper. Test pedal feel and park brake hold on level ground before driving.
What’s included
The kit includes the S4 4-piston caliper, the 12 inch 1-piece rotor, the backing plate with park brake shoe assembly, and stainless braided hoses.
Not included: Park brake cables.
