Chevy 210 Powerglide Transmission 1957, Shift Improver Kit by J.W. Performance®. All shift improver kits include necessary valve body plates, as well as gaskets and complete instructions. Manual Performance Kit, provides full manual control, eliminates all automatic features of the valvebody. Shift improver kits are a great cost effective way to increase the performance from your automatic transmission.
Notes: Not recommended for street use
- Built using the most technologically advanced equipment
- Made from highly durable materials to last for a long time
- Made to deliver utmost combination of performance and reliability
J.W. Performance Transmission, Inc. is a leading manufacturer of high performance automatic transmissions and components for drag and off road racers, street and strip enthusiasts, and more. Headquartered in Rockledge, Florida, J.W. Performance® manufactures thousands of quality transmissions and related parts ranging from flexplates to bellhousings. The company pioneered over 250 products since 1976. Many of its innovative solutions remain the industry standard and are widely used by professional racers in the United States and abroad.