The Economy 300M billet input shaft is custom forged from High Strength 300 maraging steel and incorporates a 23-tooth input spline and 62-tooth clutch spline. This shaft utilizes a heavy duty one-piece design, is OE seal compatible, and comes with Goerend lube modifications. This shaft is recommended for trucks below 500 HP. For trucks with over 500 HP, the Sonnax 47/48RE Heavy Duty Input Shaft is recommended.
So far so good Time will tell Good price fast delivery and good customer service thank you