After much research, 305's are as wide as I can go without some major mods to the frame, rear axle and wheel wells. So...

 

Not a fan of the Foose Spank(although a very nice wheel) I personally like Intro Pentia series. You sure a 325/50-20 wont fit.

 

No, but according to the custom wheel guy, they "probably" won't.

 

IMHO, stock chrome wheels. Just have them widened.

 

hmmm, do they need to tuck? is that the issue?

 

Whatever you decide to go with, stick w/ the same size F/R. My vote was for 20X8.5/20X10.

Have you thought about any billet wheels? A bit harder to maintain, but much lighter, and custom offsets aren't a problem at all.

 

i say go with 19 fwith 20 or 20 with 20 , two inches is too much!! i also agree with moregrip im not a fan of the spank , they were pretty nice but now everyone and there ma has em. i say go with something lighter if you can!!

 

22's all around

 

20's all around just do 8.5's in front and some 10" or even 12" wide in the back... I know the Spakns are common but you cant deny that they are an awesome looking wheel...

 

I think he thinks so, despite me saying this is a truck. The big deal on the 345s is the that the wheels are $1044 each and non-returnable. He thinks the tires will rub the spring under load.

Here was his reasoning:

rim size + 1 inch for the lip
+2 inches to account for bulge
+1 inch for clearence

so the 345s on 11's are:

11 + 1 + 2 +1 = 15 inches. We only have 13 inches from spring to fender, so thats 1.5-2 inches sticking out.

When I asked him about the sidewall cross section (which is 13.6 on 11s) and asked if that wasn't the bulge on the tire he got all snippy. I said that using the method I was taught to estimate the tire fitment (line up on the existing centerline and measure the sidewall cross section) he said "without good measurements we are just wasting time". So I went out and lowered the front, jacked it up again and took off the rears.

13.5" spring to fender
8 5/8 backspacing
4.5 hub to fender

Which means to him I can only run a: 13 - 1 -2 = 10 inch rim. I know the math doesn't even match the above, but I don't want to risk $6k on unreturnable tires and wheels.