35x12.50x18's on Helo Max 6's 2004 FX4 with 2.5AS?
 

I currently have the 325-60-18" Terra Grapplers on Helo Max 6's with 2.5AS on a 2004 FX4. I've had them for 2 years now, no rubbing or problems, but last night there were terrible storms here. The tires were nearing replacement anyway but last night accelerated that need. During the heavy downpour I must have hit something big on the interstate (at 2:30 am... :() and the front passenger tire got a nice big slash through it.

AAA came and flat-bedded it for me. I'm currently shopping for new tires and would like to go the MT route.

Can the BFG MT KM2s fit on my truck in the 35/12.50/18 size?

I have BFG A/T's on my stock rims, 315/75/17s with no problems at all.

If not the 35s, how about the 33/12.50/18s?

Thanks!

No, you won't fit a 35x12.50 using those wheels. Your current tires are basically a 33x13.00-18, so yes a 33x12.50-18 will fit easily.