Wades_76_cj7 said:
Have driven grain trucks on the farm,
So this is also a question of mine... I have driven grain trucks on the farm. 90's Diamond REO and Western star...all with 8 LL 8spd trans. The REO has a 400 cummins and pulls hard. But they are LOUD. Like ear plugs or ear muffs running on the highway. I dont know if it's how they were built(more dump truck than OTR). But as cool as they are the only way I could make the jump to MDT or HDT is if there is a way to make them quiet in the cab.