I bought a "new" to me cluster gauge for my truck. Now looking at the new gauges it is not same as my AMP gauge :/

My gauge displays 50 - 0 - 50 yet this gauge shows D - 0 - C

See pics of my truck at this link - http://s5.photobucket.com/albums/y175/ShepFL/Vintage%2049/#!cpZZ3QQtppZZ28

See pics of my "new" gauge at this link -
http://www.ebay.com/itm/190649268249?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649

I want my truck to be historically accurate. What yr. did GMC switch the AMP gauge layout? Can I get replacement AMP display? Or is my new gauge correct and the "original" gauge currently installed historically incorrect?


Be the person you would want as a friend because at the end of the game the King and Pawn go in the same box.