The trailer at most is 2000 pounds and my cherokee is about 3300, I would love the fuel economy of a diesel, especially the 7.3 powerstroke not the IDI, but they are out of my price range. But everyone has sold me on the smallblock, but if anyone comes back and reads this, is the 5300lbs a little too much to tow with a 1/2 ton's drivetrain suburban, if so should i get the 3/4 ton. Little more info I'll be towin from southern connecticut to hilly vermont,new hampshire,maine and pennsylvania.