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Description
1978-1988 Regal SS4 Brake System Rear 4302337SFits 1978 88 GM G Body Cars w OE Saginaw 10 Bolt C clip (BIH) Drum Brake Housing Ends Features: 2 Piece, 4 Piston, S4 Caliper Manufactured in Phoenix, AZ CNC Machined from US Sourced Forged or Billet Aluminum Powder Coated Finish Hard Anodized Aluminum Pistons, Stainless Steel Abutments and Noise Suppression Clips Dual Seals, Dust Weather & Pressure 1 Piece Slot, Drilled, Zinc Plate Rotor Specs: Applications GM G Body 78 88 Axle Rear Brand Baer Brakes
Fits 1978-88 GM G-Body Cars w/OE Saginaw 10 Bolt C-clip (BIH) Drum Brake Housing Ends
Features:
- 2-Piece, 4-Piston, S4 Caliper Manufactured in Phoenix, AZ
- CNC Machined from US Sourced Forged or Billet Aluminum
- Powder Coated Finish
- Hard Anodized Aluminum Pistons, Stainless Steel Abutments and Noise Suppression Clips
- Dual Seals, Dust/Weather & Pressure
- 1-Piece Slot, Drilled, Zinc-Plate Rotor
Specs:
| Applications | GM G-Body 78-88 |
|---|---|
| Axle | Rear |
| Brand | Baer Brakes |
| Caliper | S4 |
| Caliper Color | Silver |
| Disc Brake Caliper (Rear) Piston Quantity | 4 |
| Disc Brake Caliper (Rear) Type | Floating |
| Disc Brake Pad FMSI Number | DR1-C |
| Disc Brake Rotor (Rear) Construction | Vented |
| Disc Brake Rotor (Rear) Outside Diameter | 12.000IN |
| Emission Code | 6 |
| Export Description | Brake Components |
| Fitment Notes | w/OE Saginaw 10 Bolt C-clip (BIH) Drum Brake Housing Ends |
| Grade Type | Performance |
| Hose Material | Stainless Steel |
| Includes Park Brake | Yes |
| Includes Park Brake Cables | Yes |
| Lug Count | 5 Lug |
| Min Wheel Dia (verify using template) | 16IN |
| Product Line | 12 Inch SS4 |
| Product Type | 12 Inch SS4 Rear Brake Kit |
| Prop 65 (C, R or CR) | CR |
| Prop 65 - Long Label | WARNING: This product can expose you to chemicals including Toluene Diisocyanate, and Nickel which are known to the State of California to cause cancer. For more information, visit www.P65Warnings.ca.gov |
| Prop 65 - Short Label | WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov |
| Prop 65 Yes/No | Yes |
| Rotor Thickness | 1.020IN |
| Rotor Type | 1-Piece |
| Surface Type | Slotted, Drilled & Zinc Plated |
| System Notes | Fits stock Saginaw 10 bolt C-clip, drum brake rear end |
| Template | S113E |
| Title | SS4 Brake System Rear |
| Wheel Lug/Bolt Pattern | 5x4.75 |
Application:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1978-1988 | Buick | Regal | |
| 1978-1987 | Chevrolet | El Camino | |
| 1978-1983 | Chevrolet | Malibu | |
| 1978-1988 | Chevrolet | Monte Carlo | |
| 1978-1981 | Oldsmobile | Cutlass | |
| 1985-1988 | Oldsmobile | Cutlass | |
| 1978-1988 | Oldsmobile | Cutlass Supreme | |
| 1978-1988 | Pontiac | Grand Prix |
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Exchange/Return Notes
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4.7 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Very nice item
Really love the look of this bookcase and also the sturdiness of it. It’s really heavy and has great shelf space as well as being tall enough that I can use the top for figurine/collectable storage but not so tall that the items on top are unreachable which is nice. It was a little difficult to assemble with my husband getting hurt slightly when putting on the backer boards but once we had extra hands to help it was easy enough to finish up.
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Reviewed in the United States on March 20, 2026
★★★★★ 3
has some positives and negatives
The bookcases are very sturdy and look very nice. The instructions are easy to follow and they are good value for money (compared to other prices these days)
The negatives are that the back is hard to have on exactly flush as they should be. The back panel is taped together poorly and is the main reason for the panels not lining up. I made it work with some creativity though. My main issue is that one of the main shelves (part 3) had the holes drilled backward and so you had to assemble it with the bare wood facing out. I will paint this to get a close match. You can't replace just one part and I didn't want to return the 80 lb package and go the refund route
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Reviewed in the United States on February 25, 2026
★★★★★ 1
poor quality
the middle connection is so weak, resulting separate when moving. so poor quality, not recommended. better to buy Sander etc other brands
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Reviewed in the United States on April 26, 2026
★★★★★ 4
Time
There are a lot of pieces to put together but instructions are provided that help so it only takes time.
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Reviewed in the United States on November 7, 2025
★★★★★ 3
Be careful while assembling!
I have bought similair bookcases in the past...long time ago. I thought the quality back then was poor, because it was made out of compressed sawdust with glue ( composite). But these shelves are slightly less quality of those of long ago. The company has made great strides at providing the pieces with pre-drilled holes with excellent
precision. However, the composite material does not have quite enough glue mixed within. So the material is ever so slightly crumbly. So once you screw in a screw, don't remove it, because if you do the screw will not hold as good. I reccomend that you add a drop of glue into each hole during assembly. The rotating screw locks are made of cheap pot-metal that will snap if you crank too hard on your screwdriver. The good news is the kit comes with plenty of extra screws, wooden dowels, and such.
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Reviewed in the United States on December 15, 2025