Truck or Car ?

[Blazn C5]

I am hoping I can get some good info from you guys on the subject of blazers being considered trucks or cars? I have an opportunity to get my hands on a pair of black and gold plates to use on my blazer. They are commercial and end in the letter " G ", which i have been told is correct for 1970. My problem is people that I have talked to are split on if blazers are cars or trucks. The DMV hasn't been helpful and I cant get a straight answer out of them, I know big surprise right ! The plates are DMV clear and come with a 1970 sticker for the YOM program. I just want to make sure I am not wasting my money for these plates.

Anthony