Ratech Smart Sleeve GM 12 Bolt H753C4259 but may not fit pulleysmanufactured

but may not fit pulleysmanufactured by other companies

7L S/B Chevy engines originally equipped with centerbolt valve covers

1960 Ford Starliner

Derale 19in Rigid Race Fan (Steel Blade-Reverse Rot

Ratech Smart Sleeve GM 12 Bolt H753C4259 but may not fit pulleysmanufacturedProduct Description: Crush Sleeve Smart Sleeve Steel Natural GM 12 Bolt Sold Individually Ratech wants all racers to know about The Myth that "All Shim Packs in the market are the same. They're just washer shaped steel that come in different thickness." WRONG! Ratech manufacture all of their shims in house on their own machinery. Ratech uses the absolute finest American made Hardened Shim Stock available. Ratech uses only hardened shim stock not sheet