Overview
Baer’s 4302268MG is a Pro Plus 13.0 inch rear disc brake kit in Monster Green, built for rear ends that use a GM small pattern 10/12 bolt bearing-on-axle flange. It pairs a 6-piston, 6P caliper with a 13 inch, 2-piece slotted, drilled, zinc-plated rotor, and it works with 5×4.75/5×5.00 wheel bolt patterns.
Wheels 17 inch or larger are the intended fit, matching the 17.0 inch minimum wheel diameter. NAS high grade stainless hardware comes pre-installed on the rotors. The backing plate carries the caliper and holds a 1-piece park brake shoe assembly, and the package also contains braided hoses and matching hardware. The kit is a performance grade product, and its caliper is manufactured in Phoenix, Az.
Key features
- 6-piston, 6P caliper manufactured in Phoenix, Az
- Stainless steel pistons, abutments and noise suppression clips
- Staggered pistons to minimize uneven pad wear
- Dual dust/weather and pressure seals
- Powder coated finish
- 2-piece slotted, drilled, zinc-plated rotor with billet aluminum hat
- DOT approved brake hose.
Hose and fluid care
Braided brake hoses resist abrasion better than standard rubber lines, but they still need regular inspection. Check the fittings and the length of each hose for bulges, kinks, chafing against the suspension or frame, and any seepage. When a hose is replaced, keep the same routing and clamp positions so it stays clear of tires and moving parts. Fresh brake fluid of the correct type matters too, since fluid absorbs moisture over time and can soften pedal feel under hard braking.
Pad wear is worth watching on any rear disc setup. Uneven wear, pulsing, or a wheel that drags after a stop can point to a sticking caliper slide, a worn pad or a warped rotor. Check the pads at each brake inspection, and look over the rotor surface for heavy scoring before reusing it.
- Inspect braided hoses for chafing and bulges
- Keep hose routing and clamp positions unchanged
- Replace brake fluid on the schedule for your vehicle
- Check pads and rotor surface at each brake service
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302268MG |
| UPC | 90127951934 |
| Caliper | 6P, 6 pistons, fixed |
| Caliper color | Monster Green |
| 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
Fit follows the GM small pattern 10/12 bolt bearing-on-axle rear flange used by Buick, Olds and Pontiac, together with the 5×4.75/5×5.00 wheel bolt pattern. Match your axle to both before ordering.
The Monster Green finish has no bearing on fit. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Use the Q110H template to check wheel clearance before mounting, because Baer does not guarantee fit to every wheel design. Rotors come already assembled with stainless hardware. Park brake cables are not included, so the cable setup needs to be planned separately. Brake work is best left to someone trained in brake systems.
What’s included
The kit includes the 6P caliper, the 13 inch 2-piece rotor pre-assembled with stainless hardware, the backing plate with its 1-piece park brake shoe assembly, and braided hoses and hardware.
Not included: park brake cables.
