Truxedo 17- Ford F250 6.7ft Bed LoPro Tonneau Cover RS004C0409 Lightweight aluminum torque ball is

Lightweight aluminum torque ball is hardcoated and then Teflon(R) coated for a "no bind" feel

The 600 gear uses a 3/4"-30 spline U-Joint

Quick Time Bellhousing GM LS1 to T56 RM-8020

GM F-Body 1982-2002

Note 4 -this product is legal only for off highway use (except in California or states that have adopted California emission standards)

Truxedo 17- Ford F250 6.7ft Bed LoPro Tonneau Cover RS004C0409 Lightweight aluminum torque ball isA sleek, low profile design is the signature of the Lo Pro. Heavy duty construction and the patented automatic tension control keep the cover looking great in any weather condition. The Lo Pro mounts inside the rails of the truck bed, providing full access to stake pocket holes for use with additional accessories. Stylish design, simple functionality and durable bed protection are what make the Lo Pro North America's #1 selling roll up truck bed