I thought i would let you know about my 33" fitment (in case it helps anyone). I previously ran BFG A/T 275/65R17 (a bit less than 31" i think). They were great - no punctures at all and about 70000 kms. I was debating going to 265/70R17 (around 32"?), but after reading 62 pages of thread, decided to give 33's a go. I decided on BF Goodrich 285/70R17 KM2 mud terrains (i had read they were a small 33" - not sure if that is true).
I have a 2 inch Ultimate Suspension lift, factory UCAs and 17x8 P22 alloys. The P22 offset worried me, as by about page 30 of the thread it seemed P15 was ideal (or P10). So i thought the body mount would be fine, but UCA could present an issue. I took off the off the remaining front mudflap (one had been lost offroad), and followed the instructions on page 1 (stanley knife to the guard, hammer to the pinch weld, and heat gun to the plastic wheel liner to push it back - i also sprayed some killrust paint to protect things).
I got the tyres from Tempe Tyres in Sydney, and they did a test fit before deciding on the 33's (took about 2 hours as they were packed as usual). They were $375 each fitted and balanced (way more than the 26570R17 at $295). $40 for a front wheel alignment. They fitted my new TPMS for free.
Some pics below (they are a bit big - don't know how to fix that)
BFG KM2 285/70R17 on Incubus 17x8 P22 alloys (they cleaned the tyres, but the rims were conveniently ignored)
Full Lock - it clears the body mount easily, but does brush the chassis at the back, and maybe brushes the sway bar at the front. (i can tell from a faint black mark in the wheel arch that's caked with Yahwal mud). Whites facing in...
Clearance of UCA with wheels straight - i can get a finger in there
Clearance of UCA with full lock - it comes closer at the front when wheel turned, but can still get a pinky in there
Clearance of body mount - seems to be a bit of space - maybe the P22 offset helped
I also took the opportunity to fit a TPMS. I got a Steelmate TP-05, with internal sensors and a reversing camera override to display pressures, temps and warnings. Its great so far!
So all up a good outcome.
I am not sure what issues will present when the wheels flex. I might put some washers on the bump stops (not sure how many)? I am hoping that as it clears the UCA now, it will also do so when flexed (is this the case?). Not sure if i should worry about the chassis or sway bar, otherwise i would have to get 4 new wheels (i think dynamic do a 17x8 P10 steelie). Or a 6mm shim (bringing the P22 to P16)?
Thanks guys!