Coincidentally I made one for my 49 3600 just a couple of weeks ago. Didn't take long (maybe a few hours after the paint dried) and all with steel I had on hand; works really well been driving it a lot and like the look and functionality of it.
I chose to bolt mine to the stake pockets.
The bonus of the 3600 of course (for anyone reading NOT familiar) is that longer wheelbase of the 3600 means there's no need for a "dished" wheel well.
1949 Chevrolet 3/4 Ton - Still Solid. Regular Driver OT Vehicles: 1925 Hudson Brougham Super Six 1950 Chevrolet Styline (Parts) 1952 Canuck Pontiac Sedan Delivery (Well Underway) 1973 F250 4x4 Highboy 1977 F250 4x4 Lowboy
