tire help

My Xterra came with 15in. tires. I need to replace the spare, and happen to have a couple of 16in. tires sitting around. I realize it wouldn't be something you'd want to run on for long, but it's either that, or nothing, at the moment--as finances are tight.Would using one as the spare be at...

Ok, so I'm a complete rookie at all of this and have no mods on my 00 4wd x. i currently have some 265/70r/15 regular street tires on the stock wheels and I found some a/t tires i want to get but i don't know if they'll fit. They're 31/10.5/15's, but idk if theyre gonna scrape when im turning...

i finally got my 02 xterra back and paid off! now it's time for upgrades and to turn my "Peggy Sue" into one bad ass M*F* i would like to get more power out of "her" since i feel the 3.3L is seriously underpowered for a V6. My parents 05 Armada makes me jealous of the newer, quicker responding...

Im looking to get some new tires for my xterra but not quite sure what size... I just recently purchased the car used and it still has the stock tires on it. I was looking at getting some BF Goodrich All Terrain Tires but not sure which size. I would like to put the biggest size I can without...