Upgrade your Ford C4 automatic transmission with the Speedmaster PCE602.1008 billet 300M steel input shaft. Featuring a 0.788" diameter with a 26-spline pump end and 24-spline turbine end, this shaft is precision-machined from high-strength 300M alloy steel for superior toughness and resistance to torsional stress under high-performance and racing conditions.
Designed as a direct replacement for the factory Ford C4 input shaft, this billet unit delivers the added durability needed when pushing increased power levels beyond what stock components can reliably handle. A trusted Speedmaster drivetrain component for enthusiasts and builders demanding stronger internals in their C4-equipped builds.
MPNPCE602.1008
UPC840136562832
![Speedmaster PCE602.1009 GM 4L80 Stock Spline 300M Automatic Transmission Input Shaft [34670-01]](https://cdn11.bigcommerce.com/s-o2urolu8d5/images/stencil/500x659/products/363369/393401/51LzNErZv7L__07228.1787169938.jpg?c=1 "Speedmaster PCE602.1009 GM 4L80 Stock Spline 300M Automatic Transmission Input Shaft [34670-01]")
