Allison 1000 2000 2400 GM Duramax Transmission SAE9310 Billet Steel Input Shaft
GM Allison Billet Input shaft (SAE9310 forged steel)
Allison 1000/2000/2400 transmission
Part #A121670HD
Fits 2006-10 6 Speed (will fit 2001-05 5 Speed with machined hub)
Ideal for high performance and heavy duty applications.
50% stronger than the factory shaft
Machined with larger radius at splines for additional strength against twisting
Precision ground and machined for perfect tolerances and dimensional accuracy