[bdshumaker]

Thanks for all the replies. When I pointed out the incorrect(for Chevy) leaf springs and informed the seller it must be a GMC frame he responded with, "Oh, that might be why it had a GMC tailgate" So, I'm assuming that for whatever reason, the original Chevy longbox cab, 283 V8 and SM420 were transplanted into a 1963-66 GMC short box chassis with GMC box and now has a Chevy tailgate. It is quite a quilt as it also has 'custom' emblems on the cab but nothing custom inside. As to a full conversion, it will be infinitely easier and cheaper to find a correct Chevy chassis and custom trimmings rather than finding a rust free GMC cab, hood and 305 V6. So, unless someone wants to do a free 'organ donation' I'm afraid it might eventually be 100% Chevy. When the swirling vortex of terror outside subsides I'll get some pics posted. BTW, that's me on the right and my brother on the left.
Brian