oldblue48, If you haven't checked it out already, read through this
1941 Chevrolet Truck resource document on the GM details of your new truck. AL is listed as a 3/4 ton Light Duty truck as seen in the screenshot clipped from the document. According to the 2nd screenshot, the 3/4 Ton share virtually identical brake details as the 1/2 Ton. Others will surely come along and confirm the 6 lug wheels where also used on the 3/4 Ton.
You might also like to read through this other
1941 Chevy Truck resource document. Happy Reading!
