Overview
The Baer Brakes 4302268HO is a Pro Plus 13 inch rear disc kit finished in Hugger Orange. It targets rear axles fitted with the GM small pattern 10/12 bolt bearing-on-axle flange and a 5×4.75/5×5.00 bolt pattern, and it uses a 6-piston, 6P caliper on a 13 inch slotted, drilled, zinc-plated rotor.
The rotor arrives already assembled, using NAS high grade stainless hardware. A 1-piece park brake shoe assembly sits in the backing plate, which also serves as the caliper mount. The 13 inch Pro Plus fits wheels 17 inch or larger. Braided hoses and hardware are included, and the pad type is D0731.
Key features
- CNC machined from forged or billet aluminum
- Stainless steel pistons, abutments and noise suppression clips
- Staggered pistons reduce uneven pad wear
- Dual seals guard against dust, weather and pressure
- Powder coated finish
- Vented 2-piece slotted, drilled rotor with billet aluminum hat
- Brake hose DOT approved
Choosing wheels for clearance
Wheel clearance is the first thing to settle with any rear disc upgrade. The caliper body and rotor hat sit in the space where a wheel’s inner barrel and spokes pass, so backspacing and offset matter as much as the nominal wheel diameter. Hold the wheel against the hub with the template in place, then turn it slowly to check for contact at the caliper, the hose and the backing plate edge.
Once the wheel fits, the rest of the rear end should be checked. Tire height and width change how much room the caliper has against the inner sidewall, and a lift or larger tire can reduce clearance. Park brake cable length and anchor points also affect the setup, so plan that routing before the rotor goes on.
- Check backspacing and offset against the caliper
- Turn the wheel by hand to find contact points
- Recheck clearance after changing tire size
- Keep brake hoses clear of wheel and tire edges
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302268HO |
| UPC | 90127951910 |
| Caliper | 6P, 6 pistons, fixed |
| Caliper color | Hugger Orange |
| 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
The 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.
Rear axles with other flanges or bolt patterns fall outside this kit. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Check wheel clearance with the Q110H template before mounting. The rotors come assembled with stainless hardware. Park brake cables are not included and must be arranged separately. Installation is best left to a shop with brake experience.
What’s included
The kit includes the 6P caliper, the 13 inch 2-piece rotor, the Baer backing plate with its 1-piece park brake shoe assembly, and braided hoses with hardware.
Not included: park brake cables.
