TCS Allison 1000/2000 Billet Input Shaft | 2017 - 2019

Duramax Allison 1000/2000 Input Shaft

Built to handle extreme power and demanding conditions, this TCS input shaft is engineered for durability and long-term reliability in high-load applications.

Features & Benefits:

• Approximately 50% stronger than the OEM input shaft

• Manufactured from premium 9310 Vacumelt steel for exceptional strength

• Precision ground to maintain tight dimensional tolerances

• Machined with a larger-than-OEM radius at the turbine spline to reduce stress and increase durability

• Ideal for heavy-duty, towing, and performance applications

Fitment:

• 2017+ GM Duramax L5P trucks equipped with the Allison 1000 (LCT1000) transmission