Good day. I'm wondering what the differences are between a Case STX 375 and a 380. Is there anything besides the Cummins QSX 15 in the 375 and the Iveco 12.9 in the 380? The 380 being a bit newer is there any improvements in cab, hydraulics, transmission, drives? Are the frames and drivetrain the same? Thank in advance. Are they both engines for the long haul?