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Description
1973-1977 Century Pro+ Brake System Rear 4302407SFits 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, 6 Piston, 6P Caliper Manufactured in Phoenix, AZ CNC Machined from US Sourced Forged or Billet Aluminum Powder Coated Finish Stainless Steel Pistons, Abutments and Noise Suppression Clips Staggered Pistons to Minimize Uneven Pad Wear Dual Seals, Dust Weather & Pressure 2 Piece
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, 6-Piston, 6P Caliper Manufactured in Phoenix, AZ
- CNC Machined from US Sourced Forged or Billet Aluminum
- Powder Coated Finish
- Stainless Steel Pistons, Abutments and Noise Suppression Clips
- Staggered Pistons to Minimize Uneven Pad Wear
- Dual Seals, Dust/Weather & Pressure
- 2-Piece Slot, Drilled, Zinc-Plate Rotor w/Billet Aluminum Hat
Specs:
| Applications | GM A-Body 64-77 |
|---|---|
| Axle | Rear |
| Brand | Baer Brakes |
| Caliper | 6P |
| Caliper Color | Silver |
| Disc Brake Caliper (Rear) Piston Quantity | 6 |
| Disc Brake Caliper (Rear) Type | Fixed |
| Disc Brake Pad FMSI Number | D0731 |
| Disc Brake Rotor (Rear) Construction | Vented |
| Disc Brake Rotor (Rear) Outside Diameter | 13.000IN |
| 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) | 17IN |
| Product Line | 13 Inch Pro+ |
| Product Type | Rear Brakes |
| 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 | 1.100IN |
| Rotor Type | 2-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 | Q110H |
| Title | Pro+ 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.
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4.7 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
Indestructible
Color: Onyx Black - Most Durable
This is actually indestrutible! Be careful though, it's wicked hard/heavy. It isn't a ball you want banging into things. Use outside!!
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Reviewed in the United States on April 23, 2026
★★★★★ 4
Not indestructible, but the best I’ve found
Color: Onyx Black - Most Durable, Color: Onyx Black - Most Durable
This thing is unexpectedly heavy for its size. My 18 month old Giant Schnauzer is obsessed with fetch but destroys every ball she gets. The other brands marketed for extreme chewers tend to last about a day or two before they’re totally shredded. She’s had this one for about 2 weeks and it’s looking rough, but still holding together for the most part. I appreciate that as it comes apart it does so in little pieces rather than large chunks. While it’s far from indestructible, it’s the strongest I’ve found so far.
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Great product!
Color: Onyx Black - Most Durable
Great product! Quickly became my Pit Princess's favorite toy! The size, weight, and material is perfect for a big dog. Now we have fetch ball that has proven itself to be worthy!
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Reviewed in the United States on May 8, 2026
★★★★★ 3
good but not indestructible
Color: Onyx Black - Most Durable, Color: Onyx Black - Most Durable
pretty good but definitely not indestructible
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Reviewed in the United States on April 18, 2026
★★★★★ 5
Our German Sheppard loves these
Size: Medium
These cost a bit more than tennis balls, but they are so much nicer and longer lasting. For starters, they stay cleaner than tennis balls because they’re smooth rubber. Dirt won’t build up on them and if anything does stick, like grass or soil, it falls off once the dog slobber dries. They’re also thick, so they don’t fall apart or blow out like a normal tennis ball does in our dog’s jaws after 30 seconds. Our GS chomps on these like crazy and the only damage they’ve suffered is a crack that developed from the edge of the hole, but the crack is growing very slowly and none of these balls have totally failed yet. The balls do whistle when thrown ant high speed and that may help a dog track and locate it, but I’m not sure. Our neighbors hear the whistling too so it’s far from silent. Lastly the orange ball is easy to locate out in our yard, but the dark blue practically disappears.
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Reviewed in the United States on April 6, 2025