The ATS Diesel Performance Stage 2 Transmission Packages 309-924-2272 is a 4-speed remanufactured automatic transmission kit built for compatible Cummins diesel applications that need stronger drivetrain support, improved durability, and dependable towing, pulling, racing, or long-haul performance. Featuring a Cummins bellhousing bolt pattern, automatic valve body, lockup compatibility, deep black aluminum transmission pan, steel input shaft, OEM-style aluminum case, and included torque converter, this Stage 2 package is designed for diesel truck owners, mechanics, fleet service teams, performance builders, and drivetrain specialists who want a stronger automatic transmission solution.

The ATS Diesel Performance Stage 6 Automatic Transmission Packages 309-963-4332 is a 6-speed remanufactured automatic transmission kit built for compatible Chevy diesel applications that need serious drivetrain strength, higher torque capacity, and dependable power transfer. Designed for towing, daily driving, and racing applications where the vehicle is properly matched, this Stage 6 package features a Chevy bellhousing bolt pattern, automatic valve body, included torque converter, included controller, included wiring harness, 300M input shaft, deep black aluminum pan, lockup compatibility, and OEM-style purple aluminum case.