Overview
For rear ends with a GM small pattern 10/12 bolt bearing-on-axle flange, the Baer Brakes 4302268GB is a Pro Plus 13 inch disc brake kit in Grabber Blue. Its 6P caliper is a 6-piston design, and it squeezes a 13.0 inch vented rotor that is 2-piece, slotted, drilled and zinc plated.
The rotor carries a billet aluminum hat and comes as one assembly with NAS high grade stainless hardware. Baer’s backing plate mounts the caliper and houses a 1-piece park brake shoe assembly. Stainless braided lines and their hardware come with the kit. Wheels of 17 inch or larger suit this Pro Plus system, and the wheel bolt pattern is 5×4.75/5×5.00.
Key features
- 6-piston 6P caliper with staggered pistons to minimize uneven pad wear
- Stainless steel pistons, abutments and noise suppression clips
- Dual dust/weather and pressure seals
- CNC machined from forged or billet aluminum with a powder coated finish
- 2-piece slotted, drilled, zinc-plated rotor with billet aluminum hat
- Rotors pre-assembled with stainless hardware
Rotor and pad replacement
Rotors wear by thickness and surface, and a rotor that has lost too much material or developed deep grooves should be replaced rather than resurfaced. Pads are usually the first wear item. Choose pads that match the pad type for this kit, and bed them in with a series of moderate stops so the friction material transfers evenly to the rotor.
Hardware matters during service too. Stainless fasteners resist corrosion, but they still need correct torque and clean threads. Replace any bolt that is stretched, rounded or damaged, and check the caliper bracket bolts after the first few stops. Keep brake fluid fresh and bleed the system whenever the caliper or lines have been opened.
- Replace rotors that are below minimum thickness or deeply grooved
- Bed in new pads with moderate stops
- Use fresh brake fluid when lines are opened
- Torque fasteners to the vehicle specification after service
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302268GB |
| UPC | 90127951897 |
| Caliper | 6P, 6 pistons, fixed |
| Caliper color | Grabber Blue |
| Rotor outside diameter | 13.0 inch |
| Rotor construction | Vented, 2-piece slotted, drilled, zinc plated |
| Rotor thickness | 1.1 |
| Brake pad FMSI number | D0731 |
| 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 | 17.0 inch |
| Brake hose DOT approved | Yes |
| Park brake | Included; park brake cables not included |
| Template | Q110H |
| Emission code | 6 |
| Grade type | Performance |
| Sold as | Kit |
| Country of origin | USA |
Vehicle fitment
There is no vehicle list for the 4302268GB. Rear compatibility depends on the GM small pattern 10/12 bolt bearing-on-axle flange used by Buick, Olds and Pontiac rear ends, plus the 5×4.75/5×5.00 wheel bolt pattern. Verify the axle specifications with the manufacturer before ordering.
Rear ends with a different flange or bolt pattern are not covered by this kit. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Run the Q110H template against your wheel before mounting, since Baer cannot promise fit into every wheel style. The rotor and its stainless hardware come as one assembly. Park brake cables are not included, so connect the park brake using cables sourced for your own setup. Have a brake professional handle the work.
What’s included
The kit includes the 6P caliper, the 13 inch 2-piece rotor with billet aluminum hat, the backing plate with its 1-piece park brake shoe assembly, and braided hoses with hardware.
Not included: park brake cables.
