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Here is mine for my 1978 with factory diesel.

You might notice that RPO codes: MX1, YF5, and B3J are Oldsmobile RPO codes.

04-23-2014, 07:46 PM	#6
Corts60 Just here to tinker Join Date: Jun 2008 Location: Holland, MI Posts: 3,687	Re: Squarebody SPID Picture Thread Here is mine for my 1978 with factory diesel. You might notice that RPO codes: MX1, YF5, and B3J are Oldsmobile RPO codes. __________________ 78 C10 SWB Diesel #1 (wrecked)http://67-72chevytrucks.com/vboard/s...1978+silverado 78 C10 SWB Diesel #2 (sold)http://67-72chevytrucks.com/vboard/s...d.php?t=650751 60 GMC Suburban (sold)http://67-72chevytrucks.com/vboard/s...d.php?t=445526 60 GMC 1000 (sold)http://67-72chevytrucks.com/vboard/s...d.php?t=298235 67 GMC 1500 (sold) http://67-72chevytrucks.com/vboard/s...d.php?t=803695 86 Suburban(summer unit) http://67-72chevytrucks.com/vboard/s...d.php?t=810697 88 Suburban 4x4(winter unit)https://67-72chevytrucks.com/vboard/...25#post8900725 Last edited by Corts60; 04-23-2014 at 08:23 PM.