Overview
The Baer Brakes 4302477S is a silver Pro Plus rear brake system for the 1992–1993 GMC Typhoon with its original rear end housing. It uses a 2-piece, 6-piston 6P caliper and a 14 inch two-piece slotted, drilled rotor on a billet aluminum hat. The listed fitment is the 1992–1993 GMC Typhoon, and the template for wheel checks is Q110P.
The system is manufactured in Phoenix, Arizona, using CNC machined parts made from US-sourced forged or billet aluminum. The hubs arrive assembled, with bearings and races installed and packed with Redline synthetic grease, so the remaining work is bolting the assembly to the control arms.
Key features
- Two-piece 6-piston 6P caliper made in Phoenix, AZ
- CNC machined from US-sourced forged or billet aluminum
- Silver powder coated finish
- Stainless steel pistons, abutments and noise suppression clips
- Staggered pistons to reduce uneven pad wear
- Dual seals for dust, weather and pressure
- Two-piece slotted, drilled, zinc-plated rotor with billet aluminum hat
Before you buy
A rear disc brake kit replaces the parts that do the stopping at the back axle, so it is worth checking the whole setup before ordering. The rotor, caliper, pads and hub all work together, and a change to one often affects clearance or pedal feel in the others. Measure the space between the wheel spokes and the rotor hat, and compare that with the caliper body as well as the rotor diameter.
Brake parts are usually replaced in matched sets. If the rear pads or rotors are already worn, a new caliper will not restore full stopping power on its own. Look at the state of the brake lines and hoses at the same time, because old hoses can swell under pressure and cause a soft pedal even when the new parts are correct.
- Confirm the wheel clears the caliper and rotor before mounting
- Check the brake lines and hoses while the rear end is open
- Replace worn pads at the same time as the rotors
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302477S |
| UPC | 844165047209 |
| Type | Complete rear brake kit |
| Caliper | 2-piece, 6-piston, 6P |
| Caliper color | Silver |
| Finish | Powder coated |
| Pistons | Stainless steel |
| Rotor diameter | 14 inch |
| Rotor construction | 2-piece, slotted, drilled, zinc-plated |
| Hat | Billet aluminum |
| Rotor surface | SDZ |
| Minimum wheel diameter | 18.0 inch |
| Axle | Rear |
| Template | Q110P |
| Box count | 2 |
| Country of origin | USA |
Vehicle fitment
It fits the 1992–1993 GMC Typhoon with its original rear end housing.
Other truck years and models are not on the list, so the silver kit should not be assumed to fit them. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Lay the Q110P template against the wheel you intend to run before mounting, since fit into every wheel style or manufacturer cannot be guaranteed. The hubs arrive with bearings and races installed, so the job is bolting the assembly to the control arms. Brake components are safety-critical, so have a qualified installer confirm clearance and setup.
What’s included
The complete rear system includes the 6P caliper, the rotor and the hub assemblies with bearings and races installed and packed in Redline synthetic grease. The kit is packed in 2 boxes.
Not included: wheels and tires, which must clear the caliper and rotor.
