Postby lighthammer » January 21st, 2012, 10:21 am
yo dude,
FIrst of all, there's no shame in asking questions - we're all here to learn and share so daiz no scene at all!
Most folks usually start off with a stock-sized rim/tyre combo. Currently I'm running 16" stock navara rims and 265/70R16 BF Goodrich All-Terrains. Lots of other guys run a very similar size combination in other brands too and it generally works well on most types of terrain except for stick/slippery mud (good for trails, gravel, sand, light mud).
If you want to get into the Mud-Terrain territory now, you can still run stock-sized Mud Terrain tyres (one of our guys has a ranger and he has Kumho KL71 Mud Terrains in 255/70R15, I believe) and you can run through most of the trals we go on with little difficulty (most of the trails).
But you can definitely go with the smaller, 15" rim and larger tyres, eg. 32x10R15 and what you're really gaining is height-clearance on the axles (since a taller tyre give you more clearance).
However, you may need to install a lift-kit in order to have enough clearance for those tyres in your wheel-wells. The most basic thing you can do is a body-lift (using taller blocks on each mounting point between the body & chassis) and you can go up to 3" max (without having to modify certain things). Suspension is also a good thing to lift.... but all of this lifting-business is another story.
Either way, if you decide to stay stock-sized, or larger muds +/- a lift-kit, it comes down to mostly your budget and what your driving aims are.