Overview
The Baer Brakes 4302471B is a rear Extreme Plus brake system in black for 1960-1988 Chevrolet and GMC C10 trucks with a 5 lug, 5×5.00 inch wheel pattern. The kit combines a 1-piece Monoblock, 6-piston, 6S caliper with a 14 inch two-piece slotted, drilled rotor, and the backing plate carries the park brake shoe assembly.
The kit suits axles with 10 bolt or 12 bolt C-clip housing ends, and the caliper uses the D1247 pad type. The minimum wheel diameter is 18.0 inch, and the rotor pairs an iron ring with an aluminum hat.
Key features
- Black powder coated 6S Monoblock caliper
- Stainless steel pistons, abutments and noise suppression clips
- Staggered piston layout to reduce uneven pad wear
- Dual seals against dust, weather and pressure
- CNC machined from 2618 aluminum forging
- Slotted, drilled, zinc-plated 2-piece rotor with billet aluminum hat
- Floating caliper design on a vented rotor
Park brake and hydraulics
A rear disc kit with an integrated park brake changes how the parking system works, so the linkage on the truck matters as much as the caliper. Confirm that the cable or lever arrangement on the existing truck can operate the park shoe in the backing plate before the old parts are removed. Keep the original hardware labeled so nothing is lost during the swap.
Brake fluid should be bled and the lines checked for leaks after any caliper change. Old fluid absorbs moisture and can lower its boiling point under hard stops, so a fresh fill is common practice. Inspect the braided hoses for chafing at each service interval, paying attention to spots where they pass near the frame or suspension.
- Check hose routing for clearance at full suspension travel
- Replace worn rear shoes when fitting a new park brake assembly
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302471B |
| UPC | 844165047094 |
| Caliper | 1-piece Monoblock, 6-piston, 6S |
| Caliper color | Black |
| Caliper type | Floating |
| Rotor type | 2-piece, slotted and drilled |
| Rotor outside diameter | 14.0 inch |
| Rotor thickness | 1.25 |
| Rotor material | Iron with aluminum hat |
| Rotor construction | Vented |
| Brake pad FMSI number | D1247 |
| Lug count | 5 lug |
| Wheel bolt pattern | 5×5.00 inch |
| Min wheel diameter | 18.0 inch |
| Axle housing flange type | 10 bolt, 12 bolt (C-clip housing ends) |
| Hose material | Stainless steel |
| Park brake | Included, park brake shoe assembly |
| Park brake cables | Not included |
| Front rotor | Not included |
| Lug nuts | Not included |
| Template | N135P |
| Axle | Rear |
| Grade | Performance |
| Sold as | Kit |
| Country of origin | US |
Vehicle fitment
Baer’s manufacturer list for this kit covers 1960-1988 Chevrolet and GMC pickups, including C10, R10 and R1500 Suburban variants, along with GMC 1000 and C15 models.
Pickups built after the 1988 range on the list are not covered, so ask the manufacturer before fitting a later truck. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Park brake cables are not supplied, so confirm how the parking brake linkage on your truck connects before installing. Stainless braided hoses come with the kit. Baer cannot guarantee fit with every wheel style, so compare the N135P template with your wheels first.
What’s included
The kit includes the black 6S Monoblock caliper, the two-piece rotor and billet aluminum hat, the backing plate with park brake shoe assembly, stainless braided hoses, and pre-assembled stainless hardware.
Not included: park brake cables, lug nuts and the front rotor.
