Swift Bulletproof Coil-Over Spring - Barrel Type - Bulletproof - 2.5" ID x 16" Tall - 175 lb. Racing Radio Systems Shift Improver Kit for 68-81

Shift Improver Kit for 68-81 TH-350 Transmission

They offer 2 and 4 stroke oil

2 O'clock Position

1-1/4 in Diameter Hole

Swift Bulletproof Coil-Over Spring - Barrel Type - Bulletproof - 2.5" ID x 16" Tall - 175 lb. Racing Radio Systems Shift Improver Kit for 68-81PURPOSE BUILT FOR THOSE OF YOU PUTTING MORE STRESS ON A SPRING THAN HOW IS CONVENTIONALLY USED. WE SOUGHT AFTER A NEW APPROACH IN DEVELOPMENT FROM OUR REGULAR SUSPENSION SPRING. Swift Springs manufactures springs with differing rates for a variety of circle track racing applications. With options for both dirt and asphalt tracks, Swift has a wide range of coil spring formats, including coil over, dual rate, bump springs, and more. Swift Springs