The ultimate in Performance Allison Transmissions, inside and out. Designed for peak performance, strength & power for the serious truck enthusiasts. A truck producing more than 1000 HP isn’t worth much if it doesn’t have a transmission capable of transfering all that power to the ground. The BLACK model transmission is highly recommended for use in vehicles producing more than 800HP. The BLACK model includes all the features of the PLATINUM model, plus a myriad of performance upgrades, designed and manufactured in collaboration with DEFEO. Built with our exclusive line of BLACK Series Performance Parts, this model contains the most robust gear train in the industry.
Recommended for applications producing 800 horsepower or more.
- Updated Hi-helix Gear Train w/PTO provision.
- Updated Oil Pump & Front Support for increased pressure.
- All New External Hardware & Electrical.
- New Internal & External Filters.
- New Thrust & Ball Bearings.
- New updated Garlock lined Teflon Bushings.
- Updated LML style C3/C4 molded pistons.
- Updated LML style C3/C4 return spring assemblies.
- Updated P1 Flange.
- GPZ Clutch Pack w/Extra torque kit
- Xcalliber Custom Calibrated Performance Valve Body with all NEW Electrical
- Dual C3 Side Oiling PTO Covers
- Extra Deep Oil Pan
- 5 Disc Billet TC w/Billet stator, piston, and cover (Customized Stall ratio based on application)
- Xcalliber Black Series Performance 6 Pinion Billet P2 Carrier & Billet C2 Hub set.
- Xcalliber Black Series Performance Billet Shaft set of 3 (Input, Main & Output)
- Black Powder Coated Casing, Bell Housing & Tail Housing.
- Dynamometer Tested.