[gmccollector]

The books are not wrong Steve , something you missed in what I was telling you , the Data books are only PART of the story. They do not list every option or combination. They list a base-line , Theres more books needed that complete the story. My March 1st 1964 or 3/1/64 data book did not get the revisions that were available to the dealers and checking the dates of my truck engine, it was built = assembled 3/24/64. My 66 Data bookS , three , are all slightly different with updates. Back to what you said is not in the books , every part of my 64 327 AC C30 is in the GM parts book , every factory piece right down to the last clip washer, original belt numbers carb , you name it. GMC did the same. Data books are not always updated by the dealer but the parts book has every single piece. I found you that 55-58 GMC Suburban gate emblem part number you didn't think existed also. Experience is great Steve , we are all anxious for facts though , something positive to back up a claim.