fits make: Gm. year: 1965–1972.



| Brand | BIG END PERFORMANCE |
|---|---|
| Manufacturer Part Number | BEP30115 |
| Part Type | RING PINION GEAR |
| Vintage Part | NO |
| Placement On Vehicle | REAR |
The Borgeson Performance BP135 GM 12-bolt 73 ring pinion gear set is an excellent option for retrofitting your vehicle, whether you own a 1965-1972 GMC truck or an El Camino. This set features a 73 ring pinion that upgrades your vehicle's drivetrain, making it more efficient and power-packed.
The BP135 GM 12-bolt 73 ring pinion gear set is a perfect fit for your vehicle's existing drivetrain, with a direct-fit design that minimizes modification. It boasts a modification-free installation, making it an ideal option for DIY enthusiasts and professional technicians alike. This gear set also comes with all the required hardware to mount and secure the gears to your vehicle.
One of the highlights of the Borgeson Performance BP135 GM 12-bolt 73 ring pinion gear set is its high-quality materials. The ring pinion is made from chrome steel, a material known for its strength, durability, and resistance to corrosion. The gears are precision-machined to ensure a perfectly-fitted and reliable gear.
The BP135 GM 12-bolt 73 ring pinion gear set is designed to deliver exceptional performance without compromising your vehicle's handling and ride quality. It enhances your vehicle's acceleration, engage, and towing capabilities, making it an excellent choice for those who want to achieve more from their trucks and muscle cars.
Overall, the Borgeson Performance BP135 GM 12-bolt 73 ring pinion gear set is an excellent upgrade for your 1965-1972 GMC truck or El Camino. With its exceptional quality materials and modified fitment, this gear set delivers exceptional performance and efficiency, making it a top choice for anyone looking to upgrade their vehicle's drivetrain.
This analysis focuses on the BEP 30115 GM 12-Bolt 8.75" Ring and Pinion Gear Set (BEP30022), designed for vehicles with a 1965-1972 12-bolt rear end. This gear set offers improved performance and durability, but it comes with both advantages and potential disadvantages.
Pros:1. Performance Enhancement: upgrade to a more robust and high-performance gear set can lead to increased horsepower transmission and torque delivery to the wheels.
2. Better Gear Ratio: the 8.75-inch ring and pinion gear set offers a lower gear ratio than the original 4.11, which can contribute to stronger launches and quicker acceleration.
3. Quality Material: BEP uses high-quality materials, such as heat-treated steel for the pinions and case-hardened steel in the ring gears, resulting in better strength and longevity.
4. Precision Manufacturing: careful machining and manufacturing processes ensure that gears fit accurately and run smoothly, reducing the likelihood of vibration, noise, and wear.
5. Reasonable Price: compared to some other performance gear sets and upgrade options, this gear set is relatively affordable, making it a budget-friendly choice for many.
Cons:1. Not OEM: while BEP's parts often fit properly, they are not original equipment manufacturer (OEM) components. Some installers and owners may prefer OEM parts or fear potential compatibility issues.
2. Custom Installation: depending on the skill level of the installer, a custom installation may be required, which could involveRadiused bearing races may need to be machined.
3. Possibility of Bite Concerns: upgrading the ring and pinion gear set may result in tooth-to-tooth contact, leading to noise and wear. These issues may require minor adjustments to drivetrain components or the use of additives like Lock-Right or Powertrax Hydro-Preload to achieve a quieter operation.
4. Not a Setsuitable upgrade for light-duty applications: this gear set is not recommended for those with light-duty trucks or aspiring off-roader due to the emphasis on performance and extreme durability, which might unnecessarily wear out the drivetrain in light applications.
5. Limited Warranty: BEP gears come with a limited warranty, which may not cover every potential issue and may not last as long as the original equipment used in the vehicles. However, customer reviews suggest that BEP offers good customer service.
Conclusion:The BEP 30115 GM 12-Bolt 8.75" Ring and Pinion Gear Set (BEP30022) offers significant performance enhancements for those looking to upgrade their drivetrain systems. It comes with a reasonable price tag, high-quality materials, and a loyal customer base. However, potential drawbacks include potential custom installation, potential noise and wear issues, and a limited warranty. Overall, this gear set is ideal for owners seeking enhanced performance for their 1965-1972 12-bolt rear-end vehicle, especially those who operate under load or engage in aggressive driving.
Recommendation:Based on the available information, it is recommended that enthusiasts considering this gear set weigh the pros and cons carefully, evaluate their expectations, and consult experts for installation and compatibility considerations. This review should not be the sole determinant in deciding whether or not to invest in this gear set, as individual experiences and circumstances may vary.
See pics for details. Gm 8.875 car gear set, all 12 bolt passenger cars 1965-1972 - 10-7/8 oval bolt rear cover diameter ring gear, 1.625 diameter, 30 spline pinion BEP30022 3.73 ratio 41-11 teeth 3 carrier kit may be missing parts.
