Overview
The Baer Brakes Extreme Plus 4302472S is a silver rear disc brake kit that Baer markets for 1960 to 1987 Chevrolet C10 trucks, along with related Blazer and Suburban models with a C-clip rear end. It is set up for 2WD, 5 lug trucks and pairs a six-piston caliper with a 15 inch slotted and drilled rotor. The kit includes a park brake assembly, so it covers service and parking braking on the rear axle.
Baer assembles the hubs in advance, with the bearings and races installed and packed with Redline synthetic grease. The kit is designed to bolt onto the control arms. Because wheel styles vary widely, Baer does not guarantee fit with every wheel, so check the N135U template against your wheel before ordering.
Key features
- Forged 1-piece monoblock 6-piston, 6S caliper
- Stainless steel pistons, abutments and noise suppression clips
- Staggered pistons to reduce uneven pad wear
- Dual seals guard against dust, weather and pressure
- 2-piece slotted, drilled, zinc-plated rotor with billet aluminum hat
- Powder coated finish, manufactured in Phoenix, Arizona from US sourced materials
- Park brake assembly
Rear axle service basics
Rear disc kits on a C-clip axle work with the axle bearings and hub, so the bearing condition matters as much as the caliper. Wheel bearings that are loose or rough will wear pads unevenly and can cause pulsation under braking. Check bearing play and grease condition each time the rear brakes are opened.
Pad wear is often uneven across the two sides when a caliper or slide hardware sticks. Look for a pad that wears down faster, scoring on the rotor, or a pedal that feels soft after a stop. A rotor with deep grooves or heat cracks should be measured and replaced rather than reused. Keep the park brake cable free to move, since a frozen cable can drag the shoe.
- Check bearing play with the wheel off
- Inspect rotor scoring and heat cracks
- Confirm park brake cable movement
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302472S |
| UPC | 844165047148 |
| Sold as | Kit |
| Axle | Rear |
| Caliper | 6S, 6-piston, forged 1-piece monoblock |
| Caliper color | Silver |
| Rotor diameter | 15 inch |
| Rotor style | Slotted, drilled |
| Rotor construction | 2-piece |
| Rotor material | Iron with aluminum hat |
| Rotor surface | Zinc plated |
| Minimum wheel diameter | 19.0 inch |
| Park brake | Yes |
| Axle housing flange type | 10 bolt, 12 bolt |
| Template | N135U |
| Box count | 2 |
Vehicle fitment
This silver kit fits 1960 to 1986 Chevrolet C10 trucks. Confirm your exact year, model and body style before ordering, since the 1987 model year and Blazer or Suburban body styles need to be checked against your truck. Wheel styles vary, so confirm clearance with the N135U template before ordering.
The list does not include Blazer or Suburban entries, GMC trucks, or any 1987 model. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Lug nuts are not included, so the existing lug nuts or studs must suit the 5 lug wheel pattern. Confirm the axle housing flange is 10 bolt or 12 bolt before mounting. Check wheel clearance with the N135U template, since the minimum wheel diameter is 19.0 inch. Brake work on a rear axle should be done by someone experienced with disc brake service.
What’s included
The hubs arrive assembled, with bearings and races installed and packed with Redline synthetic grease. The park brake assembly is included.
Not included: front rotor and lug nuts.
