Why lbz transmission cooler lines leak and how to fix them
If you own a 2006 or 2007 Duramax, you've likely dealt with leaking lbz transmission cooler lines at some point, or you're currently staring at a red puddle on your driveway. It's almost a rite of passage for these trucks. While the LBZ is widely considered one of the best engines GM ever put in a Silverado or Sierra, the factory plumbing for the transmission was, to put it bluntly, a bit of a letdown. ...