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Gordonr1973 · 01-03-2011, 08:34 PM

This is kind of cool: http://www.gm-trucks.com/rpo-code-lookup/?find=29u

Its a website to decode your RPO codes!!

I just verified I have a 3.08:1 (GU4) so I think I'll be looking for a 3.42:1

01-03-2011, 08:34 PM	#87
Gordonr1973 Home Built '87 Join Date: May 2010 Location: Calgary, Alberta Canada Posts: 1,829	Re: "The Ayatollah of Rock and Rolla" 1987 Chevy 2WD SWB This is kind of cool: http://www.gm-trucks.com/rpo-code-lookup/?find=29u Its a website to decode your RPO codes!! I just verified I have a 3.08:1 (GU4) so I think I'll be looking for a 3.42:1 __________________ Gordon 1998 White Chev ext cab 2WD (Summer Project) http://67-72chevytrucks.com/vboard/s...d.php?t=408424 1987 Chev Silverado SWB (Winter Project Rebuild) http://67-72chevytrucks.com/vboard/s...d.php?t=424833 Truck Club http://67-72chevytrucks.com/vboard/s...d.php?t=466969 Last edited by Gordonr1973; 01-03-2011 at 08:40 PM.