Category Archives: Chevrolet/GMC 6.6L Duramax Transmission Cooler 2001-2014

Cooling to the Duramax – Transmission Cooler, Part 3: Adapt and Overcome

This 2001-2014 Chevy / GMC 6.6L Duramax Transmission Cooler is now available! Click here to check it out! With so many model years to cover, our biggest challenge would be making one cooler fit them all. But we had a plan. Our 2001-2014 Chevy / GMC Duramax transmission cooler blog so far has focused on the two stock coolers. We looked at the early, comically small, transmission cooler. We looked at the later, and larger but poorly placed, transmission cooler. Finally, after almost a year of R&D, we get to look at Mishimoto’s solution to the stock coolers’ shortcomings. But first, … Continue Reading ››

Cooling to the Duramax – Transmission Cooler, Part 2: Measure Twice

This 2001-2014 Chevy / GMC 6.6L Duramax Transmission Cooler is now available! Click here to check it out! No matter how many trucks I write about, I’m always surprised how often a critical part of the drivetrain is underdeveloped. It’s even more surprising when a truck built for towing and hauling has a major flaw in the transmission system. The transmission is the heart of towing, and when you’re asking it to carry over five tons of truck and trailer up a grade, any weakness in the system is sure to show itself. However, the Allison transmission mated to 2001-2014 … Continue Reading ››

Transmission Cooling to the duraMAX – 2001-2010 Chevy /GMC Duramax Transmission Cooler, Part 1 – Stock Review

This 2001-2014 Chevy / GMC 6.6L Duramax Transmission Cooler is now available! Click here to check it out! Extreme heat is always the enemy, especially when it comes to vehicles equipped with an automatic transmission. The Allison gearbox mated with your 6.6L Duramax is no exception. With the high temperatures produced by an automatic transmission, it seems almost cruel that the sweltering summer heat comes when most of the towing of campers, boats, and other outdoor toys happens. GM did include some help to keep your gears cool. Unfortunately, it’s a little small. For … <a href=Continue Reading ››