Overview
The Baer Brakes Extreme Plus 4302471S is a silver rear disc brake kit with a 14 inch, 2-piece slotted and drilled rotor. It is designed for 1960 to 1987 Chevy and GMC C10 2WD trucks with large pattern 10 or 12 bolt C-clip housing ends and 5 lug, 5×5 inch wheels. The kit includes a park brake shoe assembly.
The 1-piece monoblock 6-piston caliper is CNC machined from US sourced 2618 aluminum forging and powder coated. The backing plate serves as the caliper mount and houses the park brake shoe. The 14 inch rotor is suited to wheels of 18 inch or larger, and the wheel template is N135P.
Key features
- 1-piece monoblock 6-piston, 6S caliper
- Stainless steel pistons, abutments and noise suppression clips
- Staggered pistons to reduce uneven pad wear
- Dual seals for dust, weather and pressure
- Rotors pre-assembled with NAS high grade stainless hardware
- 2-piece slotted, drilled and zinc-plated vented rotor with billet aluminum hat
- Stainless braided hoses included
Large pattern housing checks
Large pattern 10 and 12 bolt housing ends differ in flange layout, so the housing is measured before the kit goes on. A flange that is damaged or bent will hold the backing plate off square, which affects pad contact and rotor runout. Clean the mounting surfaces and check the studs before assembling anything.
A 14 inch rotor leaves less room than many larger options, so wheel clearance is the main concern when choosing wheels. Inspect the wheel face and the caliper area together, since a wheel with a deep offset can rub. Park brake shoes and cables are worn parts on a rear axle too, and the adjuster should move freely when the system is checked.
- Measure the housing flange before ordering
- Clean and check the backing plate mounting face
- Confirm the park brake adjuster moves freely
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302471S |
| UPC | 844165047117 |
| Sold as | Kit |
| Axle | Rear |
| Caliper | 6S, 6-piston floating, 1-piece monoblock |
| Caliper color | Silver |
| Rotor outside diameter | 14.0 inch |
| Rotor construction | 2-piece |
| Rotor material | Iron with aluminum hat |
| Rotor style | Vented, slotted, drilled and zinc plated |
| Rotor thickness | 1.25 |
| Pad type | D1247 (FMSI) |
| Hose material | Stainless steel |
| Lug count | 5 lug |
| Wheel bolt pattern | 5×5.00 |
| Minimum wheel diameter | 18.0 inch |
| Axle housing flange type | 10 bolt, 12 bolt |
| Includes park brake | Yes |
| Park brake cables | Not included |
| Template | N135P |
| Grade | Performance |
Vehicle fitment
The manufacturer fitment list covers Chevrolet C10, Suburban and R10 models and GMC 1000, C15, C1500, R1500 and Suburban models from 1960 through 1988. Entries include 1960 to 1986 Chevrolet C10 trucks and 1975 to 1978 GMC C15 Suburban models, so compare your exact model against the list.
The list does not include any model year after 1988 or any 1989 and newer GM trucks. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The rotors come pre-assembled with stainless hardware. Park brake cables are not included, so confirm existing cables suit the park brake shoe assembly. Check wheel clearance with template N135P before fitting wheels, since the 14 inch rotor suits most 18 inch or larger wheels.
What’s included
- 1-piece monoblock 6-piston 6S caliper with backing plate
- 2-piece slotted, drilled and zinc-plated rotor, pre-assembled with NAS stainless hardware
- Stainless braided hoses and hardware
- Park brake shoe assembly
Not included: front rotor, lug nuts, park brake cables.
