Yes, '41 was a transition year for the passenger car chassis. The '41 pick-up shared the carry-over '40 pick-up chassis in general, which was essentially a '40 and earlier passenger car chassis without the rear body mounts. That was the end of that '40-'41 pick-up chassis, as the '41, as well as the '42-on passenger cars used an entirely different chassis. Additionally, the '42 and later pick-ups used a completely different ladder chassis with completely different 4-spring suspension. DD