4L80E / TH400, Billet Steel Clutch Hub with Bearings
4L80E / TH400 Billet Steel Clutch Hub. Features include: Made from 4140 HTSR billet steel to eliminate spline failures in high horsepower applications. Two Torrington thrust bearings that replace the conventional thrust washers. Designed to be used in applications over 500 horsepower. No modifications required.