currently im running 32x11.5R15 yoko's on stock alum rims... with no rubbing, or fender trimming...and my mileage hasnt fluctuated.

how much fender trimming would i have to do to put truxus 33x12.5R15... and is my mileage going to change big time??

 

Could fit 33x10.50 with no trimming... Trxus M/T is available in a 255/85-16

 

Okay, before this goes any further...fit is ONE thing...wheeling with it is another.

Cramming an oversized tire on a undergeared vehicle with improper fender clearance does nothing but kill your gas mileage, tear up your fenders, tear up your tires and look stupid.

If your tires look too big or you think they are too big, they probably are.

I could fit 42s, perhaps 44s on my 85 easily...yes, they would fit...could I drive with them on...sure...could I turn, perhaps...but could I wheel it...

I think if you'll take some time to search the forum and its archives there are numerous tire threads and what size tires will work well on what rig.