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71swb4x4 · 04-21-2014, 08:57 PM

On the left hand side the first thing is the model code. Then:
A50 = bucket seats
F76 = locking hubs
M49 = Turbo hydramatic (auto trans)
R?? = tires
YF5 = California vehicle prep
ETC.

The first digit and last two don't matter. The other three make up the RPO code. You can look the RPO code up on chipflyer's site here: http://outintheshop.com/options.html

04-21-2014, 08:57 PM	#5
71swb4x4 Senior Member Join Date: Nov 2003 Location: Brookings, SD Posts: 10,497	Re: 1972 gmc jimmy spid On the left hand side the first thing is the model code. Then: A50 = bucket seats F76 = locking hubs M49 = Turbo hydramatic (auto trans) R?? = tires YF5 = California vehicle prep ETC. The first digit and last two don't matter. The other three make up the RPO code. You can look the RPO code up on chipflyer's site here: http://outintheshop.com/options.html __________________ Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs.