Review on Ano Tuff Special Purpose Aluminum Anodized by Robert Espinoza

Just right for adding another transmission cooler to the 2014 Duramax. They fit perfectly and seal with the 5/8" hardline (which comes factory fitted on the truck) and also seal with the 10AN fittings I used for the rest of the install! I'm not sure what other people are having trouble with As for the cover. You need to use SOME oil or ATF on the threads to keep them from seizing no matter what. These fittings sealed and looked great. GOOD!