8HP70/75 D-Drum

Does your D-drum splines have significant wear?
Replace it before it fails! 

Brand new aftermarket cast/machined D-drum for your 8HP70 / 8HP75 and 8HP55 transmission with 63 splines.

The drum features higher quality cast material and hardening process over the OE drum, and is machined to a much higher finish. 

The D-drum splines are made of aluminium, and is a high stress area of the 8HP transmission. These wear out and will need replacement if wear are present.