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Description
1978-1988 Regal S4 Brake System Front 4301438BFits 1978 88 GM G body Vehicles (Comes Assembled on Stock Height Spindles) 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 2 Piece Slot, Drilled, Zinc Plate Rotor Specs: Applications GM G Body 78 88 Axle Front Brand Baer Brakes Caliper
Fits 1978-88 GM G-body Vehicles (Comes Assembled on Stock Height Spindles)
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
- 2-Piece Slot, Drilled, Zinc-Plate Rotor
Specs:
| Applications | GM G-Body 78-88 |
|---|---|
| Axle | Front |
| Brand | Baer Brakes |
| Caliper | S4 |
| Caliper Color | Black |
| Disc Brake Caliper (Front) Piston Quantity | 4 |
| Disc Brake Caliper (Front) Type | Fixed |
| Disc Brake Pad FMSI Number | DR1 |
| Disc Brake Rotor (Front) Construction | Vented |
| Disc Brake Rotor (Front) Outside Diameter | 11.000IN |
| Emission Code | 6 |
| Export Description | Brake Components |
| Fitment Notes | Comes Assembled on Stock Height Spindles |
| Grade Type | Performance |
| Hose Material | Stainless Steel |
| Includes Spindles | Yes, Stock Height |
| Lug Count | 5 Lug |
| Min Wheel Dia (verify using template) | 15IN |
| Product Line | 11 Inch SS4+ |
| Product Type | 11 Inch SS4+ Front 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 Yes/No | Yes |
| Rotor Thickness | 1.020IN |
| Rotor Type | 2-Piece |
| Surface Type | Slotted, Drilled & Zinc Plated |
| System Notes | Comes pre-assembled on modified stock spindles, Widens track width .400" per side |
| Template | S125A |
| Title | S4 Brake System Front |
| Wheel Lug/Bolt Pattern | 5x4.75 |
| Wheel Stud Size | M12-1.50 x 51.5mm |
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 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 41 reviews
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Product Reviews
★★★★★ 5
Sturdy and easy to install
Size: 12 Inch, Style: Black 6Pack
These shelf brackets come with screws and are easily installed. Very sturdy and can hold 14 hardcover books easily. Would recommend these shelf brackets for use to hold things to the wall.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026
★★★★★ 4
Needs heavier duty wall anchors
Size: 10 Inch, Style: Black 6Pack
Brackets are nice and sturdy and look great in my son’s room. The included mounting hardware is not strong enough to support the brackets and shelves and I had to purchase heavier duty wall anchors, other than that great product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 25, 2025
★★★★★ 5
Very sturdy.
Size: 12 Inch, Style: Black 8Pack
Great buy compared to similar product at Home Depot. Screws can be made of a better quality metal. Overall very sturdy. Fits 2x12 lumber great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
★★★★★ 5
Great Product for my coffee station shelves.
Size: 10 Inch, Style: Black 6Pack
I've used these brackets in two different homes, and they have performed exceptionally well. They are durable, sturdy, and have held up over time without any issues. In addition to their strength, they look great and add a nice finished appearance wherever they're installed. I would definitely recommend them and would purchase them again.
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Reviewed in the United States on May 31, 2026
★★★★★ 5
Great product
Size: 12 Inch, Style: Black 6Pack
Great quality brackets. Nice and heavy and sturdy. Came with all the screws to attach it to the wall. Packaged very nicely.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
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