Got it back to the shop. Had to have my daughter come get me with the old 93. I was pulling a 7500lbs gooseneck, we put the dully on the trailer and towed it back to the shop. That was the biggest load the old dog ever pulled. Anyways it was the fuel pump it has the one mounted on the side of the filter. It would run about 100 feet at a time so I able to get it off the highway. Thanks for the reply, that was my daughters post trying to help dad.
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93 250 2wd xc 354 auto 290k
04. 5 3500 4wd cc dully 373 6speed 135k