I actually dont Aztec. They have several different backspacings to choose from, but you actually don't get to choose. You tell tham what year car and they send the right backspacing. I measured it, but I forgot already. I think it's 5.5"
Hey great looking car man! I love that yellow alot! You struck my nerves though on one thing,ha...take the cobra emblem off the grille. I think its badace that you put the cobra bumper on because lets face it...its a great looking bumper...but take the emblem off the grille, just my opinion. Other than that Drive fast buddy! And take care!