Hello Grigg, Thanks for the post and links. The rear end I have from a 1973 long wheelbase dually flat bed truck from the factory, (not a pick-up dually). If I can, I will be staying with the 18" wheels just because I like them! But that may change also if a set of 19.5's show up on my doorstep. I have never been into the AD version of Chev. trucks so I am not familiar and need to ask a question. How may years did the AD trucks come with no wing or vent window? I had the idea that only 1947 and 1948 had no vent windows.
Regards,
Alan
Alan