Overview
The Baer Brakes 2142009 is a rear Big Claw disc brake rotor kit for Dodge and Ram 1500 trucks, fitting 2006–2010, 2011–2018 and 2019–2024 Ram 1500 Classic models. The kit pairs two oversized, purpose-cast rotors with a pair of caliper relocation brackets that move each caliper outward so it clears the larger rotor.
The rear Big Claw is a drum-in-hat rotor with curved, directional cooling vanes. Baer built the kit to keep the OE brake pads and hardware in service, so the upgrade centers on rotor size and cooling rather than a new pad system. It suits Ram 1500 owners who want more braking leverage and steadier stops from the rear brakes.
Key features
- Rotors up to 2 inches larger than stock on some applications, adding brake torque and leverage.
- Cross-drilled and slotted friction surface vents dust and gases for a steadier pedal feel.
- One-piece full cast rotor with curved directional vanes that move air across the hat to aid cooling.
- Baer says independent third-party testing measured up to a 49 percent gain in braking effectiveness.
- Baer reports as much as a 200-degree drop in rotor temperature versus OE in extreme conditions.
- Zinc-plated finish resists rust and corrosion and suits open-spoke wheels.
- Bolt-on installation with no brake bleeding required.
Before you buy the rear setup
Rear rotor upgrades change more than stopping power. A larger rotor adds leverage, but the caliper, brackets and parking brake hardware all need to clear it. Before buying, measure your wheels for backspacing and confirm the spare wheel also clears the caliper, since a taller or wider tire can rub.
Pads are usually worn in with a bedding procedure once new rotors are installed. Because the OE pads stay in use with this kit, expect a short break-in period before the pedal feels fully consistent, and avoid heavy braking from high speed during that time.
- Inspect brake lines for stretch when the calipers are relocated
- Check parking brake cable routing after installation
- Replace worn rear pads and hardware at the same time as the rotors
- Look for scoring, blue spots or a pulsing pedal as signs of wear
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 2142009 |
| UPC | 90127866160 |
| Axle | Rear |
| Drive | 2WD, 4WD |
| Rotor type | Drum-in-hat |
| Construction | One piece, full cast |
| Material | Cast iron |
| Surface type | Slotted X Drilled |
| Vent design | Curved |
| Brake surface | Directional |
| Disc finish | Zinc plated, rust resistant coating |
| Outside diameter | 15 |
| Nominal thickness | 0.866 |
| Discard thickness | 0.787 |
| Overall height | 2.795 |
| Inside diameter | 8.114 |
| Center hole diameter | 3.094 |
| Mounting bolt hole circle diameter | 5.5 |
| Mounting bolt hole diameter | 0.688 |
| Stud/lug hole quantity | 5 |
| Floating | Yes |
| ABS tone ring included | No |
| Grade | Performance |
| Emission code | 6 |
| Country of origin | USA |
| Warranty | Limited 1 Year Warranty |
Vehicle fitment
It fits 2006–2010 Dodge Ram 1500, 2011–2018 Ram 1500 and 2019–2024 Ram 1500 Classic trucks in 2WD and 4WD, under the Performance Upgrade qualifier. The 2019–2024 Classic application is for 5×139.7mm bolt pattern trucks.
This list does not cover Ram 2500 or Ram 3500 trucks, and 2019–2025 new body Ram 1500 trucks are not on this rear list. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Ram 2500 and Ram 3500 trucks and 2019–2025 new body Ram 1500 trucks fall outside the coverage for this rear kit. Confirm your vehicle’s year, model and trim before ordering.
What’s included
The kit includes a pair of rear Big Claw rotors and a pair of caliper relocation brackets.
Not included: OE brake pads and hardware, which the kit is designed to keep in use.
