Bill Calwonsen hauls grain, fertilizer, sand, rock and more with a hopper with his 2007 Peterbilt 379. The truck features a Cummins ISX with 725 horsepower, an Eaton 18-speed with 3:55 rears and a 312-inch wheelbase. The truck was custom when Calwonsen bought it, but he restored the passenger side from when it was laid over. Calwonsen runs regional out of Oklahoma.
Click here to see more Reader Rigs or to upload a photo of your own.
