Magnum 6 Speed

Press Releases

American Powertrain™ Introduces Pro FitTKX 5-Speed and Magnum 6-Speed 2WD Conversion Kits for 1999-06 Chevy/GMC NBS GMT800 Trucks

 American Powertrain™, a leading source for modern overdrive systems, announces there’s more fun on the horizon for anyone with a 1999-06 Chevy/GMC new body style GMT800 truck.  American Powertrain now offers a TKX 5-Speed and MAGNUM 6-Speed Pro Fit Transmission Conversion Kit, for any 1999-2006 NBS, 2WD Chevy or GMC truck as a turnkey solution with minimal tuning required. Both the 5-speed and 6-speed…