While the 2011-’16 Duramax has a decent-sized transmission cooler stuffed behind the bumper, in heavy towing situations in the heat of the summer, there is an advantage to a larger cooler with increased surface area and better placement for increased airflow across the core. The new Mishimoto trans cooler was designed to be the answer to every Allison’s excessive heating problems.
After a few months hiatus, Project LML is back for its final installment of the build. Over the last year and a half, this 2012 Silverado made quite the transformation, with everything from suspension and chassis improvements to horsepower upgrades under the hood. When the project was introduced in the March 2018 issue of Diesel World, the plan was to take a completely stock, highermileage LML Duramax and turn it into the ultimate daily driver with the versatility to tow whatever you needed, drive where ever you wanted, and do it all with unmatched performance and reliability.