Fluidyne Allison 1000 High Performance Transmission Fluid Cooler 06-10 GM 6.6L Duramax LBZ/LMM F55-00485-06-MEDIUM you need: WITHOUT FACTORY FREEZE

you need: WITHOUT FACTORY FREEZE PLUG

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Fluidyne Allison 1000 High Performance Transmission Fluid Cooler 06-10 GM 6.6L Duramax LBZ/LMM F55-00485-06-MEDIUM you need: WITHOUT FACTORY FREEZEAnyone who has spent time pulling a trailer through the mountains, sitting in summer traffic, or making repeated long drives in a Duramax knows how quickly transmission temperatures can creep up. The factory cooler works fine for normal driving, but once the truck starts working harder, extra cooling capacity can make a noticeable difference in long term reliability and consistent performance. This Fluidyne Allison 1000 High Performance Transmission