It's your rig mount the spare where you want to , Me personally I am not a fan of the placement but my spare is as far back and low as I could get it on my truggy I built. As for 1:1 All of my wheels are the same wheel and 4 of my tires match my spare tire is different brand but it's a spare and I wasn't gonna spend 275 on a tire when the one on there still had 90% tread