First, thanks DiscoMike for your valve stem advice. I picked up some short rubber valve stems from Expedition Exchange. Now, a tire question. Currently I'm running the stock 255/55r18's which are 29" x 10.5. I've been looking at the Nitto Terra Grappler's and was wonder which of the following might fit without a liftkit, trimming, etc...

285/60r18...31.4 x 11.5
285/65r18...32.5 x 11.2
325/60r18...33.0 x 12.8

Any concerns with backspacing or other issues or should I just stick with the stock size until I install a lift (not sure when that will ever be). It's an '04 Disco by the way.

Thanks!

 

Before I got rid of my 18" wheels, I tried a set of 285 Nitto tires, looked really great but going thru a dip in the tire stores parking lot I stuffed the rears and nearly cut the side walls, so off they came and I went to 16" factory wheels.
Mike