Ford C4 Automatic Transmission 0.839" 26 / 26 Spline Billet Steel 300M Input Shaft Designed for LS applications or

Designed for LS applications or water pumps with threaded provision for water neck

They're precision-machined for optimum thread engagement and have a wide-area flange for better load distribution

Speedmaster remote thermostat housings locate the filler neck at the highest point of cars with low mount radiators to bleed air

Windsor and Big Block versions are built from sturdy cast aluminum

and longevity

Ford C4 Automatic Transmission 0.839" 26 / 26 Spline Billet Steel 300M Input Shaft Designed for LS applications orOur Input Shafts are constructed from hardened, aircraft quality high strength steel. They feature increased lubrication flow and strength with a resized diameter that provides optimum stress distribution along the entire length of shaft and along the extended high gear splines to the oil ring.