The Duramax and Allison combination is amazing but lets face it once we start turning up the power and towing heavy the Allison falls victim to many issues and C3 clutches is one of the most problematic issues in the Allison 1000 and wears out by far the fastest. Most of the reason for this is lack of lubrication. After testing other C3 oiling methods on the market in a few of our record holding Allison transmissions we found case drilling and PTO covers showed NO evidence of increasing longevity and its due to the simple fact your just putting a small amount of the same already hot fluid on the bottom of the clutches. We did find original Allison C3 snake oiler helped some so we decided to improve on it. Our design C3 oiler is an improvement over the design used years ago which pulled hot mainline oil and sent it to the C3 clutches. Our design pulls cooled oil returning from the transmission cooler to help knock down C3 temps the whole time the truck is running. There can be up to a 40 degree difference in return cooler temps and this will increase transmission life in vehicles that tow heavy and also great trucks that see the track a lot as you can idle in the pits to cool C3 and they are being cooled as your sitting in the staging lanes.
*As of now the oiler requires aftermarket lines to be used but we are the process of making an adapter for the factory lines which we can offer as a combo. C3 oiler kits for factory cooler lines will be available September 1 2021
This kit includes everything needed including the drill bit and tap needed for install.
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