Well, no, I'm running 305/70/16's, not 17's...so mine are exactly 33" diameter...he'd be running 34" on the 70's with the extra inch.
The 65's would probably be the right diameter though...with a 65 aspect ratio, the tread on the 305 would be wiider than the tread on the 70's I believe.
He'd still have 8" of sidewall, not too shabby.
At any rate...33x12.5's fit with a 3"/2" combo...and 34's might make it as far a stuffage...but, not on turning radius...the tire would swing in a large enough arc to need either more aggressive turnstop bolt adj., or a little metal clipped from the back edge of the front wheel wells, right where the mud flaps used to mount to.
For 33's, I only had to trim plastic in that spot...the metal cleared.
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- TJ
2001 Xterra '03 VG33, SE 5 spd, 305/70/16's, Revolvers, UBSkidderz, Doubled AAL's, 3"SL/2"BL, winch/bumpers, skids, sliders, OBA, Snorkel, pine stripes....
Friends don't let friends drive stock.
http://www.gifsoup.com/view/501230/tj-tackling-crawlers-ridge-o.gif