8L90 Performance Master Kit with Raybestos GPZ Clutches and Bonded Pistons. 8L90 Stall Converter in many Stall Speeds Available.
8L90 Transmission Raybestos GPZ Master Kit 2015-On (M5U). Comes with GPZ clutches, steels and an overhaul kit with bonded pistons.
RGPZ-019 Master Kit
Year Coverage: 2015-ON
Contains upgraded friction components as well as friction component manufactured with the unique blend of GPZ high energy fibers for ultimate stress and high temperature durability.