fits model: Transam, Camaro, Firebird. year: 1964–1991.

( Brand: Gm Oem ), ( Manufacturer Part Number: 1249146 ), ( Part Type: Brake ), ( Genuine Oem: Yes ), ( Item Name: Drum ), ( Alternate Item Name: Brake Drum ), ( Category 3: Rear Brakes )
This product description provides a detailed analysis of the GM 12-inch drum brake assembly (number 1249146) which is suitable for various models of Chevrolet cars produced between 1964 and 1991. These models include the Camaro, El Camino, and Firebird. The drum brake assembly is an essential safety component of these vehicles, and replacement may be necessary due to natural wear and tear or accidents.
Design and Construction:The GM 12-inch drum brake assembly (1249146) for 1964-1991 Camaro, El Camino, and Firebird is a well-engineered piece of automotive equipment. It features a sturdy drum with internal expansion ribs and cooling fins that help dissipate heat generated during braking, ensuring optimal performance and longevity. The drum's exterior is lined with a brake shoe lining material that wears down with prolonged use and becomes less effective, requiring replacement.
The brake assembly comes with a pair of serviceable brake shoes and the required hardware. The shoes are lined with friction material on the contacting side, which presses against the drum's interior when applied with hydraulic pressure. When the driver depresses the brake pedal, the force multiplication mechanism within the hydraulic system translates this force via a series of cables and levers,pushing the brake shoes against the drum, causing the car to slow down or stop. By default, the brake shoes straighten-out and release from the drum when the driver releases the brake pedal, enabling smooth and efficient braking performance.
Installation:Installing the GM 12-inch drum brake assembly (1249146) on 1964-1991 Camaro, El Camino, and Firebird involves a series of mechanical steps. First, the old drum brake assembly must be removed, which may include the removal of the tire and wheel, wheel hub, and drive shaft. Once access to the drum is gained, the drums are often held in place by wheel cylinder bolts, which may need to be drained and removed, followed by removal of the brake drum. The new brake assembly's drums are fitted in place, and the shoes are adjusted to the correct position using the sliding or adjusting shoes mechanisms. Additionally, hydraulic pressure needs to be bled from the brake system to ensure proper brake functionality and appearance after the installation of the new drum brake assembly.
Conclusion:The GM 12-inch drum brake assembly (1249146) for 1964-1991 Camaro, El Camino, and Firebird is an integral component of the vehicles' braking system, providing reliable stopping power for more than three decades of production. Over time, the brake drum inner lining may wear and require replacement to ensure the safety and optimal performance of the car's braking system. The installation process can be performed with the proper tools and by following the manufacturer's instructions. Once installed, this genuine GM brake drum assembly provides peace of mind and enhances the overall driving experience of the Chevrolet Camaro, El Camino, or Firebird.
Disclaimer: Installing the brake assembly yourself may require advanced automotive skills and proper safety precautions due to the heavy hydraulic pressures involved with the brake system. Evaluate whether you possess the skills, resources, and safety measures needed to perform this maintenance task or consider contacting a professional mechanic to ensure your safety.
a. Cost-Effective: Compared to disc brake setups, drum brakes are generally more affordable to purchase and install.
b. Low Maintenance: Drum brakes require less upkeep than disc brakes, as they don't have as many moving parts.
c. Suited for Daily Drivers: For less demanding and less aggressive driving, drum brakes can last longer and work just fine.
d. Retro Appeal: Many classic car enthusiasts respond positively to the look of traditional drum brakes.
2. Cons:a. Less Efficient: Drum brakes don't stop vehicles as quickly as disc brakes. They don't offer the same level of stopping power.
b. Brake Fade: In prolonged high-speed driving, drum brakes can experience more fast-paced heating and cooling, causing 'brake fade' that reduces effectiveness over time.
c. Brake Pedal Feel: Drum brakes don't offer the same linear response as disc brakes.
d. Limited Modification: Drum brakes offer fewer aftermarket modification options compared to disc brakes.
Conclusion:When considering the 1964-1991 nos drum brake rear setup for a Camaro, Firebird, El Camino, or Trans Am, it's important to examine the vehicle's intended usage, your budget, and personal preferences.
For those who drive their classics casually, simply commute short to moderate distances, and value aesthetic appeal, drum brakes might be the best choice. However, for those who frequently exceed the speed limit, frequently tow trailers, or drive aggressively, disc brakes would likely offer better stopping power and overall performance.
Ultimately, the decision to purchase a drum brake setup for a Camaro, Firebird, El Camino, or Trans Am should be based on a careful evaluation of the vehicle's intended use, driving habits, and personal preferences. If you're looking for the best stopping power and the most customization options, disc brakes might be the way to go. But, if cost-effectiveness and low maintenance are at the forefront, or if you're restoring a classic for authenticity, drum brakes may be the best choice.
75 to the us. 501 on the other. Shipping of 32. The boxes are not included.
494 on one and 9.
This offer is for both drums, set of 2, they were purchased in 1978 for a trans am, they have sat in the box all these years, they have never been installed but they did have some mild corrosion so they have been bead blasted, etch primed and painted to protect them. Gm oem nos rear brake drum Gm Camaro elcamino Firebird trans am.