Our in-house Stage 1 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 and a triple disc Goerend torque converter, this transmission is rated for up to 750 HP applications and comes with a 2-year unlimited-mile warranty. Also includes inspection and cleaning of all hard parts, and complimentary hot-flush while transmission is out.