Hi Fred;
Got the email-those diagrams and parts lists answer a LOT of my questions. It appears there isn't much difference in the radios except maybe the shape of the face plate.
Thanks a lot for sending the information,it's a real game changer for me. One question though,will it damage the radio if I use a bigger speaker than the original? I'm thinking of the stereo speaker set that fits the original speaker housing,made to work with the AM/FM/CD stereo retro-fit units now available. As loud as the truck is (loud pipes,two gearboxes,road noise,etc.) a little more speaker sound would really help.
Thanks again!
James


1954 GMC 350
1957 GMC 1/2 ton
1962 Chevy C-30
1952 Chevy 6400 dump bed project truck
'98 Harley FLSTC
'66 Pontiac Catalina
'76 Chevy 1 ton Duallie
'84 Bronco II
'78 Dodge W-200
'81 Toyota 4X4 truck