Ordering the wheels below in 20x9. They offer the following backspacing and offset: +25mm 5.98" and +10mm 5.39". Which would be best to go with Cooper Zeon 305/55/20? By the way, my truck is 2WD and I know I'll need a leveling kit. Also, I don't mind a little of tire extending past the fenders...but just a little for a meaty look. Thanks for the advice, it's very much appreciated.

 

I'd go with the 5.39" with that wide of tire, the 5.98" would make you rub on the control arms.

 

We are about(tonight) to put a 20x8.5 wheel w/ Toyo 275/65/20s on my Dad's 07, no level kit. The biggest issue you will have is rubbing the rear of the front fender. I would tuck that wheel in as far as you can and not use such a wide tire on a 2wd. A stock wheel has a +45mm offset and big tires will rub control arms w/ stock wheels way before they will w/ aftermarket wheels.

 

Lets lay some numbers out so you can make an educated decision...

1) 265/70 R17 = 31.6x10.4x17 (stock tire size)
2) 305/55 R20 = 33.2x12x20 (tires are 1.6" taller & 1.6" wider)
3) A +25mm offset = 7mm (0.28") inner clearance & will stick out 33mm (1.28")
4) A +10mm offset = 22mm (0.86") inner clearance & will stick out 48mm (1.89")

The 25mm offset will rub the control arms on my truck with those tires. The 10mm offset will probably not rub anything on my truck with those tires but I have a 4x4 which makes a difference, your 2 wheel drive sits alot lower. Your best bet would be to level your truck then find a store that will let you test mount different size tires on rims with different offsets.

If you are going to try to stay with the stock offset:
- 8" rims are 45mm
- 9" rims are 32mm
- 10" rims are 20mm

My rims are 17x9 with 12mm offset with 285/75 R17 (33.8x11x17) and I barley rub on the passenger side air dam. Why it only rubs on that side I have no idea, it just does. I will be leveling it out next week so no biggie.
Heres some before and after pics to give you an idea how far a 10mm offset on a 9" rim will stick out....

Before - Stock Rims


After - New Rims

 

Thanks for the feedback Tortured. I saw a Dodge 1500 2wd yesterday with Cooper Zeon 275/60/20 on it and I actually liked it. Maybe I should just get that size. I'm wanting a tire around 32-33" and Cooper offers the Zeon in 285/50 but that's going small that stock in diameter and I don't think that will look good on a mega. So in your final opinion which of my backspacing choices would push the tires out a little?

 

Watch out on the 275/60/20s, not many are E rated. I believe the Nitto Dura Grappler is, but I'm not sure of any others. I would still stick w/ the +25mm offset as I do have experence w/ a very similar wheel and our 2wd truck right now has 285/75/17s. I know where the limits are on a 2wd 2500, and you'd rather rub the control arm at FULL LOCK then rub and have to trim body and plastic IMO. Plus look at his 4x4, do you really want your tires sticking out that far on a 2wd? Or you might want a 4x4 look, I don't know???

 

I can let you know tonight how a +25mm - 20x8.5" MB Gunner wheel fits on a stock height 2wd w/ a 34" 275/65/20 Toyo AT.

 

Here's a pic of a 20x8.5" wheel w/ +20mm and a 305/60/20 Toyo tire.

 

I'll send you a PM in a day or so, maybe you can take a couple pics for me. I'm not looking for a tire/wheel combination that sticks out that far (as in the pic)

 

Will do...........did you see my pic, still sticks out far enough to make a mess when I hit a puddle and that's +20mm.

 

You will probably have less issues with the +25mm offset and those 275/60/20's and the will stick out about 1.25".

 

How are you liking the Dura Grappler? I wish they made more sizes, I really like the tire looks!

 

They are a great tire, quiet and smooth. How do you like your Toyo's? I almost ended up with those.

 

I'm on my 4th set, 1 set of MTs and 3 sets of ATs. I love the ATs, some people say they suck, but I can't imagine anyone being harder on a tire than me. I've plugged a sidewall w/ 4 plugs the hole was so big, and still got another 35-40000 miles out of the tire(dumb I know, but I did it before I had kids). I've had 305/55/20s, 2 sets of 305/60/20s 35/12.50/20sMTs, and 285/75/17s

Oh, yeah my 1st set was 285/70/17s, but I didn't keep them long(too small), so that makes 5 sets for me and 1 for my father. He's the one putting on Toyo 275/65/20s on the 2wd tonight.

 

I'm here to tell you a 275/65/20 is the biggest 20" tire a 2wd can handle stock.