Product Description
Fits: 4L80, TH400
A billet steel clutch hub, made by TCS from 4140 HTSR steel, for GM 4L80 and TH400 automatic transmissions, built to eliminate spline failures in high horsepower applications. It uses two Torrington thrust bearings in place of the conventional thrust washers and is designed for applications over 600 horsepower, with no modifications required to install.