Overview
The Baer Brakes Pro Plus 13.0-inch rear disc brake kit in Grabber Blue, part number 4302344GB, is made for rear axles with the GM small pattern 10/12 bolt flange, flush mount bearing and a 5×4.75/5×5.00 wheel bolt pattern. Check year, model and trim against your vehicle before ordering.
Its six-piston 6P caliper is fixed and finished in Grabber Blue powder coat. The vented rear rotor measures 13.0 inch and is a two-piece design with slotted, drilled, zinc-plated faces. A one-piece park brake shoe assembly sits inside the backing plate, which also serves as the caliper mount.
Key features
- Grabber Blue powder-coated six-piston fixed caliper
- Caliper body CNC machined from forged or billet aluminum
- Staggered pistons to help even out pad wear
- Dual seals against dust, weather and pressure
- Slotted, drilled, zinc-plated two-piece 13.0-inch rotor with billet aluminum hat
- Park brake shoe assembly built into the backing plate
Choosing pads for this rotor
Pad choice affects how the rotor wears and how the brakes feel at low and high temperatures. Friction material should match the way the vehicle is driven, whether that means towing, mountain descents or mostly daily use. Staying with a compound from the same family as the rear pads often keeps wear and noise predictable.
Rotor faces should be checked whenever pads are changed. Look for scoring and blue heat marks, and measure thickness against the discard limit. Slotted and drilled rotors shed water and gas quickly, but they can crack under hard use, so inspect the slots and holes each time the wheel comes off.
- Match pad compound to driving style
- Check rotor faces for scoring and blue heat marks
- Inspect slots and holes for cracks
- Measure rotor thickness against the discard limit
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302344GB |
| UPC | 90127952566 |
| Sold as | Kit |
| Axle | Rear |
| Caliper | 6P, fixed, 6-piston |
| Caliper color | Grabber Blue |
| Front rotor outside diameter | 13.0 inch |
| Rear rotor outside diameter | 13.0 inch |
| Rear rotor construction | Vented |
| Rotor type | 2-piece slotted, drilled, zinc plated, billet aluminum hat |
| Rotor thickness | 1.1 |
| Pad type | FMSI D0731 |
| Axle flange | GM small pattern 10/12 bolt, flush mount bearing |
| Wheel bolt pattern | 5×4.75/5×5.00 |
| Lug count | 5 lug |
| Minimum wheel diameter | 17.0 inch |
| Park brake | Included |
| Brake hose DOT approved | Yes |
| Grade type | Performance |
| Template | Q110H |
| Country of origin | USA |
Vehicle fitment
The kit suits rear axles with a GM small pattern 10/12 bolt flange, flush mount bearing and 5×4.75/5×5.00 wheel pattern. It is designed for wheels 17 inch or larger.
Measure the flange and bolt pattern on your axle, and verify the year, model and trim before buying.
Installation notes
The backing plate serves as both the caliper mount and the park brake housing, so it must line up with the axle flange as one unit. Park brake cables are not part of the kit. Installation calls for working knowledge of rear park brake systems.
What’s included
The kit provides the Grabber Blue fixed 6P caliper, two-piece 13.0-inch rotors, the backing plate with its park brake shoe assembly, and braided brake hoses with hardware.
Not included: Park brake cables.
