redwakeExplorerDec 12, 2013New to me tvI have a new tow vehicle its a 2006 Yukon Denali XL. This weekend will be my first time hauling with it. My trailer is about six and a half thousand pounds loaded. The truck is a 6 liter and all ...Show More
ib516Explorer IIDec 13, 2013To find the gear ratio, look at the Service Codes sticker....likely in the glove box....GU5 - 3.23GU6 - 3.42GT4 - 3.73GT5 - 4.10The sticker looks like this:This one is a 3.42 w/locker (G80)