Thanks Curt. The VIN is K1546T113364. Here is a link to the production numbers... which doesn't mean they are correct:
'60-'66 Production Numbers

It shows that they built 1,976 longbed 1/2 ton 4x4's with Fleetside beds and only 457 longbed Stepsides... who knows? I'll check out dash/engine colors tomorrow.

Thanks again, George

1954 Chevy 6400 2-Ton
1955 Second Series Napco 4 x 4 Suburban Carryall
1966 Chevrolet K-10 -- Sold to another 'Bolter