Overview
The Baer Brakes SS4 Plus rear brake system, part number 4262653GB, combines a 4-piston S4 caliper with a 13 inch, 2-piece slotted, drilled, zinc plated rotor. The kit is sized for rear ends with the Ford 8 inch and 9 inch small bearing axle flange and uses a 5×5.00 inch wheel bolt pattern. The caliper is Grabber Blue, and the minimum wheel diameter is 17.0 inch.
The backing plate is the mounting point for the caliper and also carries a 1-piece park brake shoe assembly. Baer supplies stainless braided hoses and pre-assembles the rotor with NAS high grade stainless hardware. Pad type is DR1-C, and the wheel-fit template Baer recommends for this system is S135H.
Key features
- 4-piston S4 caliper made in Phoenix, Arizona
- CNC machined aluminum caliper from US sourced forged or billet stock
- Powder coated Grabber Blue finish
- Hard anodized aluminum pistons with stainless abutments and noise suppression clips
- Dual seals for dust, weather and pressure
- 2-piece slotted, drilled, zinc plated rotor with billet aluminum hat
Pads and wheel clearance
Pad choice and rotor surface work as a pair. A pad that is too aggressive can glaze a rotor, while a pad that is too soft can wear quickly under heavy loads. Match the pad to how the vehicle is driven, whether that is mostly highway use, trail work or towing, and bed in new pads following the installer’s routine.
Wheel clearance is the other early check. The caliper and rotor sit inside the wheel, so a wheel with a deep or tight center design may need careful testing before it is mounted. Test the fit with the template and a dry fit before the tires go on. Keep the wheel bolts torqued and recheck them after the first few drives.
- Dry fit the wheel before tire mounting
- Inspect pads at every tire rotation
- Replace pads when the friction material is thin
- Check wheel studs for damage
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4262653GB |
| UPC | 90127948330 |
| Caliper | S4, 4-piston, fixed |
| Caliper color | Grabber Blue |
| Rotor outside diameter | 13.0 inch |
| Rotor type | 2-piece |
| Rotor construction | Vented, slotted, drilled, zinc plated |
| Rotor hat | Billet aluminum |
| Rotor thickness | 0.81 |
| Axle | Rear |
| Axle flange | Ford 8 inch/9 inch small bearing |
| Lug count | 5 lug |
| Wheel bolt pattern | 5×5.00 inch |
| Minimum wheel diameter | 17.0 inch |
| Pad type | DR1-C |
| Brake hose | Steel braided, DOT approved |
| Park brake | Included |
| Park brake cables | No |
| Template | S135H |
| Emission code | 6 |
| Grade | Performance |
| Format | Kit |
| Country of origin | USA |
Vehicle fitment
The kit is built for the Ford 8 inch and 9 inch small bearing rear axle flange, an axle family rather than a model year. Verify the axle flange, the 5×5.00 inch bolt pattern and the 17.0 inch minimum wheel diameter before selecting this kit.
Baer does not guarantee fit into every wheel style or manufacturer, so test your wheel against template S135H. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The parking brake shoe assembly is part of the backing plate, so plan its routing with the rear axle opened up. Park brake cables are not part of this kit. Check the S135H template against your wheel prior to mounting. Brake components should be installed by a qualified technician who tests both service and parking brakes before the vehicle is driven.
What’s included
The kit contains the S4 caliper, the backing plate with its 1-piece park brake shoe assembly, the 13 inch 2-piece rotor, and stainless braided hoses. Rotor hardware is NAS high grade stainless and comes pre-assembled.
Not included: park brake cables.
