Our in-house Stage 3 Allison 1000 transmission build. Custom clutch kit stacked in-house with Alto and Raybestos clutches. All clearances set with our machined backing plates. Includes complete gasket kit, new internal harness, new manifold pressure switch, TransGo Jr. ,Ratiotek springs, billet input shaft, billet output shaft, billet, P2 planet, billet C2 hub, and a triple disc Goerend torque converter, this transmission is rated for unlimited HP applications and comes with a 1-year unlimited-mile warranty. Also includes inspection and cleaning of all hard parts, and complimentary hot-flush while transmission is out.