It would definitly stick out the back. If you have some motorcycle tie downs you could strap it in and be fine. I'm assuming that you have about 7ft of length in the back of your Blazer with the tailgate down. The thing weights in at probably 250lbs. I'll go measure it but just guessing I'm going to say 36 to 40 inches deep and 24 to 32 inches wide. When do you want to come get it? I'll be around about all day today. or after 4pm tomorrow.