Quote:
Originally Posted by mikentosh
My '74 GMC has it listed as "YE9 - SIERRA GRANDE EQUIP" on the SPID. I'm sure there was a bit of variation based on which factory and year it was produced.
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I read on a website that in 73-74 that Sierra Grande was the top model and then in 75 they switched it to High Sierra. Maybe the YE9 just designates the top model.
I'm sure some experts can clarify. I just think it is odd so see a Chevy package listed on there.