After finding Rob English's web site ( www.oldgmctrucks.com ) again and looking around for a while, Rob has done some (probably very exhausting) research obout the old "fleet option" trucks. To put a long story short, I found out that these fleet option trucks (I own one) are even more rare than the NAPCO option. My old truck is one of less than one hundred surviving. What a boost to my ego! Later Jim Oh yea you GMC guys looking for some info, Rob has tons of info for pre 1960 trucks.BIG and small