All my research says 235/70s (most, if not all the info is on here) may need the rear of the front arches working on. It may be as simple as removing the arch liner, maybe more work. I also read you may have some contact with the gearbox.
225/70s are supposed to fit with no mods, so having lost much of my enthusiasm for cutting and hammering bits of car, I'll be ordering a set of 225/70x16 BFG ATs myself shortly.
I suppose the width and offset of your wheels will have an effect also.
Oh, just got my Rav4 a couple of weeks ago, after many months searching for the right one. A black 4.1 facelift with ABS. Upgraded from a Suzuki Vitara/Sidekick. Got bored of 82 BHP.
I just bought and custom painted some 16" core racing rims and I want to run 225 75 r16 Tires.. I am currently running 225 70 r16 that seem to have lots of room. How can I make these work? I have heard with minimal shaving of some of the plastic in the fender Wells it is doable. These are on a 1997 Toyota Rav4. I did scour the threads and couldn't find anything but this is my first time here, so if I missed it I'm sorry lol!