I have an 04.5 Duramax with the Allison 5spd. I was tired of my mileage dropping and temperatures rising if I went 75mph or more.

I couldn't find any good videos of the install or results other than 3 from Duramax Tuner themselves and one random guy in his garage. So I did this video to hopefully answer any questions others might have about the install or visible results from someone else.

So I installed Duramax Tuners 6spd conversion kit. Very easy install, about 2hrs, and so far a lot nicer ride

Thanks for watching and don't forget to subscribe.

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