Need your opinions (about tires)

[Jeffy]

I run 33x10.5's with 4.56's and it's not bad.  A lot less mass then 33x12.5's though.  Ran the same setup with 32x11.5's as well as 35x12.5's.  The 10.5's are by far the best for onroad.  I could still go with 5.13's or even 5.38's and 33's though.

Although if you're using 33x10.5R15's SS TSL's then they're going to be a lot heavier then a radial.  IIRC, TSL's don't ride on all the ligs till they wear down then they get noise as all the lugs are in contact with the road.  The softer tires also increase rolling resistance.

[stan98tj]

If you want more size options, you could try the metric sizes. My 33s (Toyo MT) are not the standard 33x12.50 rather, they measure closer to 33.5x12" they also make a 33.5x11.5 but were out of stock. Dunno what the options are for 34 or 35s but if you feel that you may be pushing it going to a full 12.5" width, see if they can come close to 11-11.5" in the metric sizes.