Overview
Grabber Blue is the finish on the Baer Brakes 4302332GB, a rear SS4 brake system built on a four-piston S4 caliper and a 12 inch, 1-piece slotted, drilled, zinc-plated rotor. Rear ends with GM small pattern 10/12 bolt bearing-on-axle flanges and 5×4.75/5×5.00 bolt patterns are the intended application.
A backing plate holds the caliper and the 1-piece park brake shoe assembly. The pads are a DR1 or HB100 type. The dust and weather seals are T compliant, and stainless braided hoses come with the kit.
Key features
- Four-piston S4 caliper built in Phoenix, Arizona
- CNC machining from US-sourced forged or billet aluminum
- Powder coated finish
- Anodized pistons paired with stainless abutments
- Dual seals rated for dust, weather and pressure
- Slotted, drilled, zinc-plated 1-piece rotor
- Braided stainless hoses included
On the trail
Off-road driving puts different demands on rear brakes. Mud, sand and water crossings can wet the rotor and pads, and the first stops afterward may feel weak until the friction surfaces dry. Gravel and rock debris can also work into the caliper area, so periodic checks of the pads and dust seals are worth building into trail trips.
Steep descents are the harder test. Long downhill runs in low-range gearing put heat into the rotor and pads, and a system that stays cool under load gives the driver more control. Choosing a pad compound suited to trail use, and checking fluid condition after heavy use, helps keep braking consistent on the next outing.
- Check pads and seals after mud or sand runs
- Let the rotor dry before relying on full braking
- Watch pedal feel on long descents
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302332GB |
| UPC | 90127952153 |
| Caliper | S4, four-piston, fixed |
| Caliper color | Grabber Blue |
| Rotor outside diameter | 12.0 inch |
| Rotor type | 1-piece, vented, slotted, drilled, zinc plated |
| Rotor thickness | 1.02 |
| Axle | Rear |
| Axle flange | GM small pattern 10/12 bolt |
| Wheel bolt pattern | 5×4.75/5×5.00 |
| Lug count | 5 lug |
| Minimum wheel diameter | 16.0 inch |
| Brake hose | Steel braided, DOT approved |
| Park brake | Included, 1-piece shoe assembly |
| Template | S113E |
| Grade type | Performance |
| Emission code | 6 |
| Country of origin | USA |
Vehicle fitment
The kit is tied to rear axle design, and the S113E template is the reference for checking axle and wheel match.
Confirm your vehicle’s year, model and trim before ordering. Baer does not guarantee fit with every wheel style, so verify the template against the wheel you plan to use.
Installation notes
Rotor thickness is 1.02 and the minimum wheel diameter is 16.0 inch, so wheel clearance should be checked against the template before mounting. The park brake shoe assembly sits inside the backing plate. Keep brake fluid off the painted caliper finish during bleeding.
What’s included
The kit includes the S4 caliper, the 12 inch 1-piece rotor, Baer’s backing plate with the park brake shoe assembly, and braided stainless hoses.
Not included: park brake cables.
