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Old 02-02-2016, 11:49 AM   #7
1774btcrew
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Join Date: Jun 2009
Location: Phoenix AZ
Posts: 4,604
Re: Nice working Early AM/FM radio

Quote:
Originally Posted by bhc41051 View Post
looks like 1977, the first digit of the "Service Reference Number" indicates the year.
The service reference numbers are a good way to check the years on these. the problem is most of them have long lost the sticker that has this information. I use them any time they are still intact. It makes life much easier.
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1972 Cheyenne Super Short Bed big block "Blackie"
1977 Crew Cab GMC Short bed with 4BT Intercooled Cummins Diesel and a 4L80e "The Junkyard Dog"
1985 Crew Cab Chevy dually with 5.9 Cummins "The Big Dog" This is what my dad liked to be called by the grandkids before he passed so it seems fitting for his old truck.
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