Overview
The Baer Brakes 4262773R is the red version of the SS4 rear brake system for Ford 9 inch rear axles with Torino (late big) bearing housing ends. An S4TL four-piston caliper finished in red clamps an 11-inch rotor, and the package includes a park brake assembly inside the backing plate. Match the axle flange and 5×4.50/5×4.75 bolt pattern to your rear end before ordering.
The caliper is a two-piece top-loaded design with hard anodized aluminum pistons and stainless steel abutments. Dual seals guard against dust, weather and pressure, and the pads are FMSI 6070013. Stainless braided hoses with a banjo-type inlet, and the hardware to mount them, come in the box.
Key features
- Red powder-coated S4TL caliper body
- Four-piston, two-piece top-loaded caliper design
- Backing plate serving as caliper mount and park brake housing
- Hard anodized aluminum pistons and stainless steel abutments
- Dual dust/weather and pressure seals
- 11-inch one-piece slotted, drilled, zinc-plated vented rotor
- Steel braided hoses, DOT approved
Park brake and rear setup
A rear brake kit with an integrated park brake changes how the axle is set up, so plan the parking function along with the service brake. The park brake lives in the backing plate, which means cable routing and lever attachment need to be sorted out before the wheel goes back on. Confirm that the cables you source match the lever and the mounting points on your axle housing.
Rear rotors on a 9 inch axle take a fair amount of heat during long descents, so pad choice and bedding matter. Check the cable and lever for stiffness or slack after the first few drives, and inspect braided hoses for chafing against the suspension or frame. Keep the backing plate bolts snug, since the caliper mount carries the braking load on every stop.
- Route park brake cables clear of exhaust and suspension
- Check cable adjustment after the first few drives
- Inspect braided hoses for chafing at each service
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4262773R |
| UPC | 90127974964 |
| Axle | Rear |
| Axle flange | Ford 9 Inch Torino / Late Big bearing |
| Caliper | S4TL, two-piece, top loaded, fixed |
| Piston quantity | 4 |
| Caliper color | Red |
| Caliper body | CNC-machined forged or billet aluminum, powder coated |
| Pistons | Hard anodized aluminum |
| Rotor outside diameter | 11.0 inch |
| Rotor construction | Vented, one-piece, slotted, drilled, zinc-plated |
| Rotor thickness | 1.02 (inch) |
| Brake pad FMSI number | 6070013 |
| Template | ST217A |
| Lug count | 5 |
| Wheel bolt pattern | 5×4.50/5×4.75 |
| Minimum wheel diameter | 15.0 inch |
| Hose material | Steel braided |
| Brake hose DOT approved | Yes |
| Park brake | Included |
| Park brake cables | Not included |
| Emission code | 6 |
| Country of origin | USA |
| Sold as | Kit |
Vehicle fitment
Fitment is set by axle rather than by vehicle model. Match this red rear kit on the Ford 9 inch axle flange (Torino / Late Big bearing) and the 5×4.50/5×4.75 bolt pattern.
Rear ends with other flange designs or bolt patterns do not fit this kit. Check the year, model and trim of your vehicle before ordering.
Installation notes
Template ST217A is Baer’s reference for wheel clearance, and Baer does not guarantee fit to every wheel. The banjo-type inlet has no pipe threads, so the braided hose connection is a single banjo fitting. Park brake cables are not supplied, so plan to source them before setting up the park brake.
What’s included
The kit includes the red S4TL caliper, the 11-inch rotor, the backing plate with park brake assembly, stainless braided hoses and hardware.
Not included: Park brake cables.

















