Overview
Baer Brakes part 4302136GB puts a 14 inch monoblock rear brake system in Grabber Blue for the 1999–2019 Chevrolet Silverado 1500 and GMC Sierra 1500, and the 2000–2020 Chevrolet Tahoe and GMC Yukon. The Extreme name refers to this larger 14 inch rear package for GM 1500 trucks and SUVs.
The 6S caliper uses six stainless steel pistons in a one-piece body machined from 2618 aluminum forging. Baer built the Extreme for owners whose trucks already carry rear discs and a manual park brake from the factory, so the park brake is not supplied in this kit. Each caliper is powder coated in Grabber Blue, and the rotor is zinc plated with a billet aluminum hat.
Key features
- One-piece monoblock 6S caliper with six pistons
- Stainless steel pistons, abutments and noise suppression clips
- Staggered piston layout to limit uneven pad wear
- Dual dust/weather and pressure seals
- One-piece slotted, drilled rotor, 14.0 inch, zinc plated
- Billet aluminum rotor hat
- Grabber Blue powder coat
Choosing rear brake upgrades
Upgrading rear brakes on a full-size truck or SUV mostly affects how the vehicle stops under load, such as towing or carrying passengers on long grades. A larger rotor and multi-piston caliper spread clamping force over more pad area, which helps the brakes feel consistent when they are warm. Before buying, look at the wheel you run, because a larger brake package needs room behind the spokes and can change how much clearance you have.
Rear upgrades are often paired with front brake work so the braking balance stays predictable. Brake lines, master cylinder condition and parking brake adjustment all affect how a rear kit performs, so inspect those while the wheels are off. Use fresh brake fluid and follow a gentle pad bedding routine before the first hard stop.
- Check the rotor surface for heat cracks or scoring during pad changes
- Inspect caliper slide pins and boots for leaks or stiffness
- Replace worn hardware clips whenever the pads are changed
- Re-torque lug nuts after the first few drives
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302136GB |
| UPC | 90127944059 |
| Sold as | Kit |
| Axle | Rear |
| Caliper | 6S, 6-piston floating |
| Caliper body | 1-piece monoblock, 2618 aluminum forging |
| Caliper color | Grabber Blue |
| Rotor outside diameter | 14.0 inch |
| Rotor type | 1-piece, vented, slotted, drilled, zinc plated |
| Rotor thickness | 1.15 |
| Pad FMSI number | D1247 |
| Wheel bolt pattern | 6×5.50 |
| Lug count | 6 lug |
| Minimum wheel diameter | 18.0 inch |
| Template | N228P |
| Brake hose | Re-uses OE |
| Park brake | Not included; re-uses OE |
| Grade | Performance |
| Country of origin | USA |
Vehicle fitment
Each application requires factory rear disc brakes and a manual park brake.
- 2002–2020 Cadillac Escalade
- 2003–2020 Cadillac Escalade ESV
- 2002–2013 Cadillac Escalade EXT
- 2007–2013 Chevrolet Avalanche
- 2002–2006 Chevrolet Avalanche 1500
- 1999–2019 Chevrolet Silverado 1500
- 2015–2020 Chevrolet Suburban
- 2000–2014 Chevrolet Suburban 1500
- 2000–2020 Chevrolet Tahoe
- 1999–2019 GMC Sierra 1500
- 2000–2020 GMC Yukon
- 2015–2020 GMC Yukon XL
- 2000–2014 GMC Yukon XL 1500
Model years outside the ranges above, and Silverado or Sierra 1500 years after 2019, are not on the list. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The factory hoses are re-used, so check them for cracking before reassembly. Brackets and hardware are part of the set. Use template N228P to confirm clearance against an 18.0 inch minimum wheel. Test pedal firmness in a parking area and bed in the pads gradually before driving on public roads.
What’s included
The kit includes the 6S monoblock caliper, the 14.0 inch one-piece rotor with billet aluminum hat, and the brackets and hardware.
Not included: park brake, which stays with the factory setup.
