and..... suggestions on which sponsor to buy them from..... i'm cheap..... my current setup won't work with that drop i have 265-50-20 bfg kdws on stingrayIII's... i have them sold for what i bought them for.... so where to now.....?

 

Tire rack for the tires. One of the best around for price. Discount Tire as well.

For your wheels, you'll have to check around as to who carries the brand line that you want.

 

The centerlines will work just fine on a 245/40/20 tire. Hankook makes a nice one. The only way you are going to get a wheel/tire combo that works with a "big" tire (275/45/20 max) on a 4/6 is by going to a custom made billet wheel with custom backspacing. You'll need 6" on a 8.5" wide wheel. Billet Specialties, Budnik, Bonspeed, Intro, and Boyd Coddington are a few examples of manufactures of these custom wheels.

You can always get some more centerlines and buy 245/40 tires this time since you have yours sold...

 

Or go with a 275/35/20

 

I run 255-35/20s on 20X8.5" rims, 6" bs.

 

That would work too as it is a hair shorter than 245/40. Just curious, how does that size tire fit on the 8" wide wheel? Does the sidewall bow out any? I started to go with that size but really liked how my 245/40 fit the 8" wheels (isn't pinched or buldged) so I went with what I knew i'd like I wouldn't mind the extra width of the 275 though...that is for sure. If I had 9.5" wheels out back i'd be all over the 275/35

 

If it does, its just a little. Not very noticable to me anyways. I know different manufacturers sizes very a little too so maybe thats it. Anyways, this is the only pic I had somewhat showing the side of the tire. btw, they are Michellin Pilot Sports.