Thanks crenwelge.
My plans are to restore to original, if possible.

My Chev truck is complete, and original so far. The 235 seems to have a stuck valve, with a bent pushrod. Seems to run OK on 5 cylinders. If the 235 isn't damaged and can be used, I think I'll restore to original. If the engine is junk, then I have other plans to put in a v8 and auto trans from my Dad's old Impala wagon.

I figure I should weld in some braces to hold the cab structure together. Remove the windshield. Cut the spot welds at the bottom of the dash. Then cut the top of the dash out leaving 1" or so. Then I remove my chev dash from my cab leaving as much material as I can up to window chanel. Then mig in the Chev dash into the GMC cab.

Alternatively, If someone could swap me a GMC instrument Panel for a Chev instrument panel, I guess I could save a lot of work smile

From what I've been told, the GMC cab was on a tow truck. It might have holes in the roof for lights that I might have to plug. It was a 55, so I don't know if it will have GMC or Chev dash.

When God gives any man wealth and possessions, and enables him to enjoy them, to accept his lot and be happy in his work�this is a gift of God. He seldom reflects on the days of his life, because God keeps him occupied with gladness of heart. Ecclesiastes 5:19-20