Ford C4 Automatic Transmission 0.839" 26 / 26 Spline Billet Steel 300M Input Shaft Most Speedmaster water pumps have

Most Speedmaster water pumps have a bigger impeller and larger cavity size to flow 40 percent more coolant than stock

Speedmaster makes it easy by providing a weld on adapter that slides into your housing tube

Speedmaster C4 Power Planets eliminate your weakest link

Speedmaster automatic transmission filters do their part to keep your transmission running smoothly by catching foreign particles

For extreme high performance applications

Ford C4 Automatic Transmission 0.839" 26 / 26 Spline Billet Steel 300M Input Shaft Most Speedmaster water pumps haveOur 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.