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Way back in 2007, 1yr after the 6L80 was introduced by GM, True Blue Motorsport embarked upon a bold mission: to offer a simple solution to converting late model OBDII and 4 speed automatic equipped GM vehicles to 6sp automatic BUT by losing ZERO functionalities. It took nearly 2 years to develop a solution, but we did it. And now, 3 generations later, we offer our latest T42-T43 Interface Module and Harness solution. Which not only allows T42 TCM wiring harnesses to easily accept a 6L80E/6L90E transmission, but to also be converted to a manual transmission (T56, etc.)
Have a 2007-12 58x LS or Atlas I4-5-6 GMT355-360-365-800 truck? (Saab 9-7x, Isuzu Ascender, GMC Envoy, Buick Rainier, Chevy Trailblazer, Chevy Colorado/GMC Canyon, Hummer H3, Sierra, Silverado, Avalanche),
Then we have the easiest swap solutions for you.T42-T43 Interface modules & harness solutions start at$595 +s/h RWD, 4WD, AWD?
We have you covered from build-your-own systems to all-inclusive packages. From custom transfer case adapters, input shafts to 27 spline output shaft 6L80-90 transmissions. Stock to over 1,000 HP!
24x or other Non-58x Engine Management Systems?
We either have a stand-alone solution or are already working on a solution for your build.
Can't fit the 6L80-90 Transmission under your vehicle's floorpan?
Contact us for more information on our upcoming compact 6 speed automatic solutions. Same gearing and performance capabilities as the 6L80 in a tighter package.
For answers as to why you should consider an upgrade from your 4L60-4L65-4L70-4L80 transmission, visit our informational site: TRUE BLUE MOTORSPORT FAQ
Apr 4, 2021 | 02:40 PM
TBMSport 58X EZ 6L80/90 Conversion
