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Transmissions: the dreaded nemesis of every diesel performance enthusiast. We all love to increase the power of our trucks, but when it comes to needing to upgrade the transmission to support that newfound power, not always enjoyable! But hey, it has to be done one way or another, so why not upgrade with components that will last a lifetime. ATS Diesel Performance is well known for their entire line of transmission upgrades. Have you ever heard of a Five Star Torque Converter or a Co-Pilot Transmission Controller? Of course you have! From simple upgrades like a 68RFE Case Brace to a full blown, power eating complete drop-in transmission, and even Allison Conversion Kits, ATS Diesel Performance has you covered with a ton of options!