Overview
The Baer Brakes SS4 Plus 4302334CY is a complete rear disc brake kit for GM small pattern 10/12 bolt C-clip rear ends with a 5×4.75/5×5.00 wheel bolt pattern. It pairs a four-piston S4 caliper with a 13 inch two-piece slotted, drilled, zinc-plated rotor and is finished in Comp Yellow.
Baer’s backing plate serves as the caliper mount and houses a one-piece park brake shoe assembly, so one kit covers service braking and parking at the rear. The 13 inch rotor is suited to wheels of 17 inch or larger, with a minimum wheel diameter of 17.0 Inch.
Key features
- Four-piston S4 caliper built in Phoenix, Az
- Two-piece slotted, drilled and zinc-plated rotor with a billet aluminum hat
- Hard anodized aluminum pistons with stainless steel abutments and noise suppression clips
- Dual dust, weather and pressure seals
- CNC machined from US sourced forged or billet aluminum
- Powder coated finish
- Park brake shoe assembly integrated into the backing plate
Before you buy
Rear disc conversions depend on the axle end more than the caliper. A C-clip axle and a bearing-on-axle axle use different flanges, so the axle end type should be confirmed before any other measurement. Once the flange matches, look at the wheel: the caliper sits inside the spokes, and offset and backspacing can decide whether the rotor and caliper clear the wheel face.
A rear kit with an integrated park brake takes over the parking function as well as service braking, so separate parking hardware usually does not need attention. Plan for the park brake cables and any lines, since they are often the last parts sourced on a conversion. Pads wear faster with aggressive driving or heavy loads, so keep spare pads of the same FMSI type on hand.
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302334CY |
| UPC | 90127953334 |
| Sold as | Kit |
| Caliper | S4 |
| Caliper color | Comp Yellow |
| Caliper type | Floating |
| Piston quantity | 4 |
| Rotor outside diameter | 13.0 Inch |
| Rotor construction | Vented |
| Rotor type | 2-Piece |
| Surface type | Slotted, Drilled and Zinc Plated |
| Rotor thickness | 0.81 |
| Min wheel diameter | 17.0 Inch |
| Axle flange | GM 10/12 Bolt C-Clip (Small Car Pattern) |
| Wheel bolt pattern | 5×4.75/5×5.00 |
| Lug count | 5 Lug |
| Pad FMSI number | DR1-C |
| Template | S135H |
| Includes park brake | Yes |
| Includes park brake cables | No |
| Grade type | Performance |
| Brake hoses DOT approved | Yes |
| Country of origin | USA |
Vehicle fitment
The kit is matched to the GM 10/12 bolt C-clip small car pattern rear axle flange, with a 5 lug 5×4.75/5×5.00 wheel bolt pattern. Confirm fit for your vehicle’s year, model and trim before ordering, and compare the axle flange and bolt pattern to your rear end.
Baer cannot guarantee fit with every wheel style, so use the S135H template to check your wheel. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Lay the S135H template against the wheel you plan to run before mounting, since clearance depends on the wheel. The park brake shoe is built into the backing plate, but park brake cables are not included. Brake work is best left to a qualified technician.
What’s included
The kit includes the S4 caliper, two-piece slotted drilled rotor with billet aluminum hat, backing plate with park brake shoe assembly, NAS high grade stainless hardware, and braided brake hoses.
Not included: park brake cables.
