GM 6.6 & 3:73
Looking for actual input, experience not opinions without experience. Anyone that has a GM, 6.6 gas with 373 gears, towing I would like to know your experience with towing power, fuel mileage and ove...
Forum Discussion
Before I can answer, are your talking 6.6 Gas or 6.6 Duramax Diesel????????
Will make a huge difference in the answers you get.
Will make a huge difference in the answers you get.
