Have you put a tape measure across that AD seat assembly? IIRC (please don't shoot the messenger) the AD series seats are wider than the 1941-46 "Art Deco" series seats. Here's a screenshot form the GM Heritage 1941Chevroket Truck PDF that gives the dimensions for your '41 so you can compare to the '54 seat.
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
