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Description
1973-1977 Century SS4 Brake System Rear 4302409SFits 1964 77 GM A Body Cars w OE Small Pattern 10 12 Bolt Bearing on Axle (BOA) Housing Ends, Also Fits Hybrid 10 12 Bolt Non Flush Mount 3. 150" Bearing 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
Fits 1964-77 GM A-Body Cars w/OE Small Pattern 10/12 Bolt Bearing on Axle (BOA) Housing Ends, Also Fits Hybrid 10/12 Bolt Non-Flush Mount 3.150" Bearing
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 A-Body 64-77 |
|---|---|
| Axle | Rear |
| Brand | Baer Brakes |
| Caliper | S4 |
| Caliper Color | Silver |
| Disc Brake Caliper (Rear) Piston Quantity | 4 |
| Disc Brake Caliper (Rear) Type | Fixed |
| 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/Hybrid 10/12 Bolt Non-Flush Mount 3.150" Bearing |
| Fitment Notes | w/OE Small Pattern 10/12 Bolt Bearing on Axle (BOA) 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 | For stock 10 or 12 bolt bearing on axle (BOP) rear end, also fits 10/12 "hybrid" rear w/ Ford 3.150" bearing |
| Template | S113E |
| Title | SS4 Brake System Rear |
| Wheel Lug/Bolt Pattern | 5x4.75 |
Application:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1973-1977 | Buick | Century | |
| 1964-1972 | Buick | Skylark | |
| 1975-1977 | Buick | Skylark | |
| 1964-1969 | Buick | Special | |
| 1964-1972 | Buick | Sportwagon | |
| 1964-1971 | Oldsmobile | 442 | |
| 1964-1972 | Oldsmobile | F85 | |
| 1964-1977 | Oldsmobile | Cutlass | |
| 1964-1973 | Pontiac | GTO | |
| 1964-1977 | Pontiac | LeMans | |
| 1964-1970 | Pontiac | Tempest |
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
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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]
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4.1 ★★★★★
Based on 340 reviews
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Product Reviews
★★★★★ 5
Fun Dog Toy, Relatively Durable, Looks Great, and Squeaker Isn't Annoying!
Color: Deep Green, Size: 10 IN
This is a fun and well-made dog toy that’s held up better than expected, especially considering my dog usually makes quick work of stuffed toys. He’s not the most aggressive chewer, but he’s definitely skilled at tearing things up over time, and this one is still going strong so far. The plush armadillo design is adorable and comes in a variety of color options, which is a nice bonus. It has your standard fluff type filling, and I really appreciate that the squeaker has more of that low grunting sound (like a pig), rather than a sharp, high-pitched one. It’s much less annoying to listen to during playtime. The 10" size was just right for my 45 lb dog, offering a good size for tugging and carrying around. Comfortable to hold, seemingly durable so far, and cute design. Seems to be a winner, would recommend!
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Reviewed in the United States on June 28, 2025
★★★★★ 5
Perfect size, cute, reasonably durable, and my dog loves it.
Color: Pink, Size: 8 IN, Color: Pink, Size: 8 IN
I ordered this for my 2year old, 55lb Staffy Pitt mix. She’s usually pretty rough on toys. She seems to either destroy them after 15 minutes, or, in a few instances, decides that she likes them enough to treat them more gently, in which they last for months or longer. I have no idea how she chooses, but in this case, she pretty much immediately ripped off part of an ear, but then, and since that time, has played and chewed on it without causing further damage. The toy is pretty adorable and looks and feels well made. It’s not constructed with a super durable material like some toys made for aggressive chewers are, but it’s also not marketed as a toy for aggressive chewers, so the material used is appropriate. The fabric feels dense and of a high quality, and the stitching looks to be of a high quality as well. I chose the 8-inch version in pink, and I’m happy with this size. It’s not too big, nor too small, and is easily portable. It arrived smashed up in a small bag, and I thought maybe it would be deformed when I took it out, but it wasn’t. It unfolded right away and then maintained its normal shape perfectly. Happy with this product, and after receiving it, I ended up ordering another, this time the 6-inch version, and while that is also a nice option, I like, and feel that the 8-inch version is a better deal. If this toy continues to last for a few more months, I would order another one, as my dog enjoys playing with it. It’s not her go to toy, but it is one of the few she keeps in playing rotation on a regular basis.
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Reviewed in the United States on September 12, 2024
★★★★★ 5
Luxurious Feel, Durable Build… but Full Rotation Privileges Have Been Revoked 💙🦴 🐾
Color: Blue, Size: 6 IN, Color: Blue, Size: 6 IN
🐾 Hi, I’m PVD; toy curator, plush critic & occasional chew sommelier.
This armadillo arrived beautifully packaged and immediately met my standards for texture, squeak clarity and cuddle factor. I originally gave it 5 stars for quality; and still do! But today I’m updating the review to reflect my current toy lifestyle rotation. 😌
What impressed me from day one:
✔️ High-end plush feel; soft enough to nap on, tough enough for energetic zoom bites and great relief from teething
✔️ Strong stitching; survived multiple “stress tests” (I chewed with intention)
✔️ HQ squeaker; not tinny or annoying, more of a honk
✔️ 6in is perfect size for small breeds; easy to carry during dramatic hallway walks
Why it now gets 4 stars from a seasoned toy collector:
✘ As my luxury toy collection expanded, this one gets grabbed less often
✘ Simple design; I now favor more interactive or complex textures
✘ Still “keep-worthy,” just no longer VIP spot on the chaise lounge
Best For:
• Pups who enjoy soft comfort toys or emotional support snuggles
• Light to moderate chewers
• Dogs who like to carry their plushes around proudly
• Ideal as a teething toy or thoughtful gift
🚫 Not ideal for: power chewers or highly stimulation-driven pups (like me now; my taste evolved)
📝 Final Re-Barks:
Still recommend for pups who love cuddly squeaky companions. Great starter plush and great quality; just know that ultra-picky toy enthusiasts may rotate it out once newer models (or squeakier friends) arrive.
— PVD (Plush Aficionado, Toy Rotation Director & High-Maintenance Household Icon) 🐶💁🏻♂️✨
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Reviewed in the United States on September 17, 2025
★★★★★ 5
Hollypet Gray is excellent
Color: Gray, Size: 14 IN
This GrayHollpet comes down the assembly line that produces a good product. It is tough and stays together Don't buy the brown one, it started to fall apart in less than 30 days.
These can be a good product!
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Reviewed in the United States on February 3, 2026
★★★★★ 4
Super cute
Color: Gray, Size: 8 IN
Super cute in person. Didn’t last two weeks with our aggressive chewer but he sure had fun with it
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Reviewed in the United States on May 6, 2026