GM 6.0/4sp vs. 8.1/Allison vs. 6.0/6sp
Hi all. My Towrig in Sig is getting a little long in the tooth. We just bought a New to us Toyhauler which is quite a bit heavier than our old trailer and my truck is hating life lol!! We were pla...
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I had a 2003 1500HD with the 6.0/4speed, 3.73 rear. Great truck, wished that I had kept it. However, it was very thirsty. It would tow very good. I now have a 2010 2500HD 4x4 with the 6.0/6speed, 3.73 rear. It gets a little better gas mileage, around 16 on the interstates, 12-13 around town and 7.5-8 while towing. My current trailer weighs around 9,000lbs and is 36 feet long. I use a 12k Equalizer hitch and it tows great. It was 5 years old on 01 March and has 73,000 miles. Put new Bilstein shocks and Michelin LTX tires on it last year. I just retired and I plan on keeping this one for a long time.
