I was in love with my 2004 GMC 3/4 ton 4x4 gasser and it would pull 3-4 ton loads before it perplexed all the mechanics who worked on it and still can't get the miss out of the engine. (It threw a valve and a pushrod at 220,000 miles). Now using a 2004 Dodge Hemi 3/4 ton 4x4. Had to re-learn how to pull a load but it is very reliable at 130,000 miles. My grandson gave me a 94 Chev 1/2 ton 6.5 diesel with 280,000 miles and it gets 14mpg loaded one way pulling a trailer with 2 1/2 ton. I've been using it daily as we're hauling two loads. Don't really want a longer trailer or a newer diesel as I might run out of farmsteads to clean up. I really like the crewcabs or quadcabs for the tools I carry and always pull a bumper hitch trailer to save room in the box. The GMC and Dodge get around 9.5 mpg loaded one way.