Quote:
Originally Posted by Deer_hunter_088
i told my dad its a 58 but he swore it was a 56, but yeah what does the 31 thing mean? is it the same as the c10,c20,c30 or what?
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31 was the designation that GM gave it when it went to Apache. 3100 was pre 58. C10 was just after Apache, C10 I think started in 60. Most all of it was marketing. 60-61 could be a C10 or K10 Apache, 58-59 would be a 31 Apache