I don't have a 41, mine are 47-54, but you can google the following and have pretty good luck..
American Classic Truck Parts (10% off to Stovebolters)
Jim Carters Truck Parts
Bowtie Bits
LMC Truck
Brothers Truck Parts
Chevs of the 40's
There are more. Summit Racing, Rock Auto, Jegs are good for over the counter from home. I get all of their catalogs.
For hardware, ARP-Bolts.com and Totally Stainless to name a few. You will be an old pro at this before you know it!
