Eddie Motorsports Billet Aluminum 6-Rib Serpentine Pulley Kit - Polished - GM LS-Series MS117-90P AS0001 The clamp ring is 1''

The clamp ring is 1'' wide mount must be welded to the axle tube

If the sensor is twelve inches away

Large tire bead bump locks tire on wheel even on rough tracks

Unique design eliminates timing movement throughout rpm range

For Chevrolet specific TH400

Eddie Motorsports Billet Aluminum 6-Rib Serpentine Pulley Kit - Polished - GM LS-Series MS117-90P AS0001 The clamp ring is 1''Product Description: Pulley Kit 6 Rib Serpentine Aluminum Polished GM LS Series From billet pulley kits to custom steering wheels, Eddie Motorsports offers a full range of billet customization and restoration accessories for everything from classic cruisers to muscle cars. Their selection of interior, exterior, and under hood accessories are offered in a variety of premium finishes and are designed to enhance the look and feel of any car.