Hey all, I have a 2004 blazer, 4wd. I was recently told that the evap canister is the same from a 99 and up and was wondering if there was any truth to this matter. I have a chance to get a evap canister from a 99 blazer and would like to throw it in my 04 blazer and would like to know if it is possible? Thank you for your time and thought in this matter.