GMC is not a Chevy

[cj847]

I have owned several 64-66 chevy trucks over the years and am intimately familiar with them. I recently bought a 64 GMC and was surprised how different it is from a Chevy. The outer body is the same except for the grill. I knew the dash was different, but didn't realize the instrument cluster is 100% different. Most websites show parts as fitting 64-66 GMC and Chevy. But the GMC gauges and knobs do not look anything like a chevy. Does anyone know of a company that has actual GMC parts? GMC Pauls doesn't sell gauges. LMC list the same gauge for Chevy and GMC. I may need a fuel gauge. Thanks.

Sorry for the rant, I am a GMC virgin.