My 1967 GMC or Chevy, not sure now! Please look!

[Patsfan34]

Well, now I’m not sure what I have. First and most importantly, it’s definitely the 292…YES. But, I’m not sure if this truck was a GMC or a Chevy now because the engine, tranny and transfer case are all original orange paint. I read somewhere (I think on this site) that the GMC engines were usually blue. Also, I could NOT find a VIN plate anywhere on this frame, and I checked everywhere like 5 times. So now I’m not even sure if the guy I bought this chassis from was correct telling me it’s a 1967 GMC.

I do have pics but can’t upload until tomorrow but I do have all the numbers off the engine, intake, tranny and transfer case:

Engine (these numbers are on passenger side of block): C0N 2 E51 3994258
Intake: 3923418 GM 28
Top of Tranny: 3901131 D88 GM2
Side of Tranny: 3901127 D288 GM2
Transfer Case: Rockwell Standard Corp.
Model: T-221 N3
Ratio: 1.94
Serial No: 12 67-0 34

So, what do you guys think? Did I make a score or is this stuff not that good?