Yes there is a diagram it is in the 1947-54 Factory Assembly Manual sold by a host of vendors. It states what all the holes are for in Section 1 Sheets 3.19-20-21 the correct one for your truck is 3.19 (close enough for reference anyway). Next it does not show the washer detail but the 1948 or similar years Accessory Installation Manuals will. The kits are dealer installed and appear in the option guides and salesman data books. The kits came with instructions (detailed measurements for drilled or existing holes)and all hardware to install they are a package that comes with everything needed to install that particular accessory. There are different brackets and styles for different years also there were aftermarket kits sold by companies like Trico and others. I would be happy to mail you photocopies of any of the information I have. I also have numerous pictures of the NOS install packages for some years. If interested send me a PM.
Last edited by Brad Allen; 06/30/2011 11:43 PM.
