Overview
The Baer Brakes 4302341GB is an Extreme Plus rear brake system kit in Grabber Blue for rear axles with a GM small pattern 10/12 bolt bearing-on-axle flange and flush mount bearing housing ends. It pairs a 1-piece Monoblock 6-piston, 6S caliper with a 14-inch two-piece slotted, drilled, zinc-plated rotor for 5×4.75 and 5×5 inch bolt patterns (5×4.75/5×5.00).
The backing plate serves as the caliper mount and houses a modern 1-piece park brake shoe assembly, so the parking brake sits in the same rear unit. Stainless braided hoses and stainless hardware come with the kit, and the rotors arrive pre-assembled with NAS high-grade stainless hardware. The 14-inch rotor is sized for wheels of 18 inches or larger, so check wheel clearance before the rotor is fitted.
Key features
- 1-piece Monoblock 6-piston 6S caliper made in Phoenix, AZ
- CNC machined from 2618 aluminum forging, USA origin
- Powder coated finish in Grabber Blue
- Stainless steel pistons, abutments and noise suppression clips
- Staggered pistons to minimize uneven pad wear
- Dual dust/weather and pressure seals
- 2-piece slotted, drilled, zinc-plated rotor with billet aluminum hat
- Stainless braided hoses and hardware included
Stainless hardware and corrosion
Stainless fasteners and braided hoses resist rust, but they do not stop corrosion between dissimilar metals. Where stainless bolts thread into aluminum parts, a light coat of anti-seize on the threads helps prevent galling during removal. Use a torque wrench and the figures in your service manual rather than tightening by feel.
Rear brake assemblies sit close to the road, so salt, grit and water reach them regularly. Rinse the caliper and backing plate after winter driving and look for paint chips that expose bare metal. Check the hose fittings periodically for weeping fluid and for chafing where the hose passes near suspension parts.
Keep a record of brake service dates and fluid changes so inspections stay on schedule. A simple log makes it easier to spot a hose or fitting that has begun to change between visits.
- Anti-seize on non-stainless threads only
- Rinse off road salt and grit
- Inspect hose fittings for weeping
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302341GB |
| UPC | 90127952306 |
| Sold as | Kit |
| Axle | Rear |
| Axle flange | GM small pattern 10/12 bolt with flush mount bearing |
| Wheel bolt pattern | 5×4.75/5×5.00 inch |
| Lug count | 5 lug |
| Caliper | 6S, 1-piece Monoblock, fixed, 6 pistons |
| Caliper color | Grabber Blue |
| Rotor outside diameter | 14.0 inch |
| Rotor construction | Vented, 2-piece |
| Rotor thickness | 1.25 |
| Rotor surface | Slotted, drilled and zinc plated |
| Minimum wheel diameter | 18.0 inch |
| Brake pad FMSI number | D1247 |
| Template | N110P |
| Hose material | Stainless steel |
| Includes park brake | Yes |
| Includes park brake cables | No |
| Grade | Performance |
| Emission code | 6 |
| Country of origin | USA |
Vehicle fitment
The kit is built for rear axles with a GM small pattern 10/12 bolt flange, flush mount bearing housing ends and a 5×4.75/5×5.00 wheel bolt pattern. Template N110P is used to check wheel clearance.
Baer cannot guarantee fit to every wheel style or manufacturer, so compare the N110P template with the wheel you plan to run. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The rotors arrive pre-assembled, so the stainless hardware is already set. The backing plate doubles as the caliper mount and holds the park brake shoe assembly. Check the N110P template against your wheel before the rotor goes on. Rear brake lines and calipers should be bled and tested by a qualified installer before the vehicle is driven.
What’s included
The kit includes the 1-piece Monoblock 6S caliper with six pistons, the 14-inch two-piece rotors pre-assembled with NAS stainless hardware, the backing plate with its 1-piece park brake shoe assembly, and stainless braided hoses and hardware.
Not included: park brake cables.
