Overview
The Baer Brakes 05594-020 is a pair of front Claw performance rotors for 1988-1994 Chevrolet C1500 and 1990-1994 GMC C1500 trucks with heavy duty chassis. These are one-piece, full cast conventional rotors with a cross-drilled and slotted friction surface and a zinc-plated finish.
The design aims to move gas and dust away from the pad and rotor interface, which Baer Brakes says supports steadier pedal feel and less brake fade. The rotors are sold as a set and are meant as a direct replacement for the factory front rotors on the vehicles named in the fitment section.
Key features
- Cross-drilled and slotted friction surface helps gas and dust escape.
- Chamfered cross-drilled holes are intended to minimize stress cracking.
- Zinc-plated finish suited to open center wheels.
- Premium, mill balanced direct replacement design.
- Vented one-piece full cast cast iron construction.
- Rust resistant coating included.
Working on older heavy duty trucks
Trucks from this era often have worn hubs and corroded studs, so inspect those parts before fitting new rotors. Clean the hub face and remove any rust that would keep the rotor sitting flat. Because bearings and races work as a matched set, check their condition whenever the hub is opened.
Heavy duty chassis trucks often tow or haul loads, so brake temperatures run higher than on lighter trucks. Pads rated for that work and fresh fluid help keep the system stable. Inspect brake lines for swelling or leaks while the wheels are off.
- Inspect hub face and studs for rust or damage
- Check bearing and race condition before reassembly
- Use pads suited to heavy loads
- Replace brake fluid if it has absorbed moisture
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 05594-020 |
| UPC | 844165001317 |
| Position | Front |
| Drive | 2WD |
| Construction | One piece, full cast |
| Material | Cast iron |
| Solid or vented | Vented |
| Conventional or drum-in-hat | Conventional |
| Surface type | Slotted and drilled |
| Vent type design | Straight |
| Disc finish | Zinc plated |
| Rust resistant coating | Yes |
| Directional brake surface | Directional |
| Floating | No |
| ABS tone ring included | No |
| Bearings included | No |
| Races included | Yes |
| Stud thread size | M14 – 1.5 |
| Stud/lug hole quantity | 5 |
| Outside diameter | 11.61 |
| Overall height | 4.51 |
| Nominal thickness | 1.28 |
| Discard thickness | 1.21 |
| Grade type | Premium |
| Warranty | Limited 1 Year Warranty |
| Sold as | Set |
Vehicle fitment
Baer Brakes lists these rotors for the 1988-1994 Chevrolet C1500 in Standard Cab Pickup form with heavy duty chassis, and for the 1990-1994 GMC C1500 in Standard and Extended Cab Pickup form with heavy duty chassis.
Fit covers the heavy duty chassis versions only. Confirm fit for your vehicle’s year, model, body style and trim before ordering, especially for light duty chassis trucks.
Installation notes
Races are included, but bearings are not, so check your existing bearing set before installing these rotors. The ABS tone ring is not included, so keep the existing ring in place. Brake work is safety-critical, so have a qualified technician install and test the brakes.
What’s included
The set includes a pair of rotors and the races.
Not included: bearings, ABS tone ring and brake pads.
