Best Performance Transmission Hard Parts of 2026

The B&M Adjustable Vacuum Modulator is a versatile accessory for GM TH350 and TH400 transmissions. With its fully adjustable feature, you can easily customize your shift points within a range of 2-4 mph. The modulator comes pre-adjusted for normal shift points, allowing you to get started right away. This genuine B&M accessory offers the convenience of tailoring your shift points to suit your driving preferences. Whether you want smoother shifts or more aggressive performance, the B&M Adjustable Vacuum Modulator has you covered. And with the backing of a 1-year limited warranty from the manufacturer, you can trust in its durability and reliability. Upgrade your transmission's performance with the B&M Adjustable Vacuum Modulator.

The Painless Performance Torque Converter Lock-Up Kit for TH700R4 Transmission simplifies the control of the lock-up function on your overdrive transmission. It is compatible with carbureted and fuel-injected engines, eliminating the need for separate, expensive computer-controlled equipment. The kit includes a vacuum-controlled switch, 4th gear pressure switch, brake switch, torque converter lock-up solenoid, wire harness, new transmission pan gasket, and mounting hardware. The installation process is hassle-free and can fit any GM TH700R4 transmission.

The Lokar Kickdown Kit is designed specifically for the Ford AOD Transmission. With its compact and lightweight design, this kit is perfect for enhancing the performance of your vehicle. The package dimensions of 1.27 H x 29.21 L x 22.098 W (centimeters) ensure easy installation and compatibility. Made in the United States, this kit is of high quality and reliability. Weighing only 0.6 pounds, it is lightweight and won't add unnecessary weight to your vehicle. The Lokar Kickdown Kit is vehicle-specific, guaranteeing a perfect fit. Upgrade your Ford AOD Transmission with this Hi-Tech Kickdown Kit and experience improved performance and convenience.

The Edelbrock Transmission Extension is designed to fit specific vehicles, ensuring a perfect match for your transmission needs. Its compact package measures just over 14 centimeters tall, making it easy to handle and store. Made in the United States, this kit offers reliable quality you can trust. Weighing less than 0.05 kilograms, it is lightweight, which simplifies installation and reduces shipping cost. This rod extension kit is a great choice if you want a precise, vehicle-specific part that enhances your transmission performance without hassle.

The Lokar Kickdown Kit is designed specifically for GM Powerglide transmissions, offering a reliable upgrade for your vehicle. Its compact packaging, measuring just over 11 by 8 inches, makes it easy to store or ship, so you can handle installation smoothly. Weighing less than a pound, this lightweight kit won't add unnecessary bulk, making it convenient for both shipping and handling. Proudly made in the United States, you can trust the quality and craftsmanship of this performance transmission part. With the Lokar Kickdown Kit, you get a handy, high-quality solution to enhance your transmission's functionality.