I have had the 8.1 and Dmax. The 8.1 will tow fine but the milage is terrible and they have a history of burning oil. Mine went through a quart every 1000 miles.
We love our 2005 GS35 with the Duramax. The power is awesome and 2005 doesn't have the emissions equipment. Ive driven 450 Ford Cs with the V10 and you cant compare the difference. The power and handling of the super C is far better than the 450 gas...
I purchased a 2005 GS35 on a kodiak chassis two years ago. The first thing i did was replace the tires as a precaution. I went with the BF 245/19.5 ST230. Best investment I've made in the rig. They are a heavy duty truck tire and have a higher load r...