Overview
The Baer Brakes 4262238CY is a complete SS4 rear disc brake system finished in Comp Yellow, built around a 4-piston S4 caliper and a 12 inch, one-piece slotted, drilled and zinc-plated rotor. It is designed for Ford 8 Inch/9 Inch small bearing axle housing ends with a 5×4.50/5×4.75 inch wheel bolt pattern.
Baer’s backing plate serves as the caliper mount and also houses a one-piece park brake shoe assembly, so the parking brake is part of the rear system itself. Braided brake hoses are included, and the rotor has a vented construction. Baer cannot guarantee fit with every wheel style, so it recommends checking the S113E template against your wheel before mounting the kit.
Key features
- Four-piston S4 caliper in a two-piece design, made in Phoenix, Az
- CNC machined from US-sourced forged or billet aluminum
- Powder coated Comp Yellow caliper finish
- Hard anodized aluminum pistons with stainless steel abutments
- Dual seals for dust, weather and pressure
- One-piece slotted, drilled, zinc-plated 12 inch rotor
- Park brake shoe assembly built into the backing plate
- Pad options: DR1 or HB100 type, FMSI DR1-C
Pad and rotor wear checks
Brake pads are the wearing part in a disc system, and the rotor surface gradually changes as pads bed in and wear. On a rear setup like this one, check pad thickness at each service interval and look for uneven pad wear, which can point to a sticking caliper slide or a pad that is seating poorly. Grooves from slotted and drilled surfaces are normal, but a rotor that is cracked, heavily scored or below its minimum thickness should be replaced rather than resurfaced.
Because the parking brake sits inside the backing plate, shoe adjustment and lever travel deserve a check after the first few drives. A parking brake that holds poorly often traces back to shoe wear or cable stretch, so inspect both during routine rear service. Keep the braided hoses clear of exhaust heat and suspension travel, and replace them if the braid shows chafing or bulging.
- Look for pad material shedding or uneven edges
- Check hoses for chafing against the axle or springs
- Test the parking brake on a slope after each adjustment
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4262238CY |
| UPC | 90127947630 |
| Caliper | S4, four pistons, fixed type |
| Caliper color | Comp Yellow |
| Rotor outside diameter (rear) | 12.0 inch |
| Rotor construction | Vented, one-piece, slotted and drilled |
| Rotor thickness | 1.02 |
| Rotor surface | Slotted, drilled and zinc plated |
| Axle | Rear |
| Axle flange | Ford 8 Inch/9 Inch small bearing |
| Wheel bolt pattern | 5×4.50/5×4.75 |
| Lug count | 5 lug |
| Minimum wheel diameter | 16.0 inch |
| Pad FMSI number | DR1-C |
| Park brake shoe assembly | Included |
| Park brake cables | Not included |
| Brake hose | Braided, DOT approved |
| Emission code | 6 |
| Grade | Performance |
| Template | S113E |
| Sold as | Kit |
| Country of origin | USA |
Vehicle fitment
The kit fits Ford 8 Inch/9 Inch small bearing axle housing ends with a 5×4.50/5×4.75 inch bolt pattern. Small bearing flanges are not interchangeable with late big bearing flanges, so match the flange to your axle housing before choosing a kit.
This kit does not cover Ford late big bearing (Torino) housings, which use a different flange. Measure and check your axle housing flange before choosing this kit. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The park brake shoe assembly is housed in the rear backing plate, so set up the parking brake during the rear install. Check the S113E template against your wheel before mounting. Brake components affect stopping, so have the finished installation checked by a qualified technician.
What’s included
The kit includes the S4 4-piston caliper, the 12 inch rotor, the backing plate with its park brake shoe assembly, and braided brake hoses.
Not included: park brake cables.
