Here's mine earning its' keep. Just got back from a road trip/job in Tonapah Arizona. Over 2600 mile round trip. Had to replace leaking radiator, probably the original 4 row.Found a replacement at Auto Zone in Phoenix. Also repaired one tire with nail in it and a leaking power steering hose. Otherwise no problems. Averaged 11.5 mpg towing 6000 lbs. Has a 5.3/ 4L60e with 4.56 gears.
Lots of nice heavy trucks here.