PST Mild Steel Driveshaft - 32.5" Length - 2" Diameter Tachometer you increase the amount of

you increase the amount of power going to the tires and improve your ET's as well

Adjust the rev limiter without removing the cap

Just plug the harness into your factory sensors

1971-1981 Pontiac Catalina

620 in Bore

PST Mild Steel Driveshaft - 32.5" Length - 2" Diameter Tachometer you increase the amount ofMild Steel feature seamless DOM tubing as the basis for producing these finely balanced driveshafts. Includes 1310 series U Joints. Driveshafts are IMCA modified legal and painted white. Yoke not included (sold separately). PST, Inc. manufactures driveshafts and driveshaft components for applications ranging from domestic and import street cars to all forms of racing. These shafts are offered in aluminum, carbon fiber, and a number of different steels