There are plenty of yellow and roadway tandems in the yard to use.Management @ 309 lets shuttle walk all over them or they would only work 4-5 hours a shift. Some only work 6 out 12 nowthe big boss in the midwest mr ganch has been told repeatedly by me and others that it dosnt make good business sense to have shuttle driving white trucks he says there only supposed to have only twin screws lol thats why thursday night at 309 7 white single axles being used by shuttle management has no balls