texasredrider

I have an 05 3500 lwb srw 4x4 and want to go with 20" rims. I need new tires and figured I would do a whole combo. I have a 2" leveling kit with bfg 315's on stock rims. I get no rubbing with this setup and want to go with this:

Pro Comp Xtreme Alloy Series 6004

For: 2005 Dodge RAM 3500 PICKUP

Part Number: PXA6004-2982

20x9, 8 on 6.5 Bolt Pattern; Backspace = 6.25 in.; Hub Centric = No; Max Load = 3420lbs; Offset = 32mm; Finish = Chrome


with these tires:

Pro Comp Xterrain Tire

For: 2005 Dodge RAM 3500 PICKUP

Part Number: PCT30035

Radial Xterrain, 35/13.50R20; Outlined Black Letters; Overall Diameter = 34.80; Rim Range = 8.0-12.0; Load Range = E; Max Load = 3305; Tread Depth = 20.5/32;


will this setup stick out too far and will it raise the ride height much? I am happy with the way the 315's barely stick out and the ride height is cool for me. I measured the tire and it's like 34 inches tall as it sits. I dont know anything about offset and backspacing and I did a search and found a bunch of confusing info that I cant make out. Will this set up work without rubbing and without looking like crap? Can I go with the 37's?

jamesbfishin

That setup will be very similar to your stock wheels in terms of how far they stick out, so that won't be an issue, it should clear the fenders too.

texasredrider

cool! does anyone have a picture of their truck with a similar setup?

BlackSunShyne

I thought Pro Comp wheels were no longer available....?

texasredrider

First I heard of anything like that. Wouldn't surprise me though, with the kinda luck I have

ptgarcia

That combo will work, but you'll probably get some rubbing on the control arms at full steering lock. Not enough to worry about, though.

I heard the same thing about the Pro Comp Forged wheels, but never got confirmation if it is true or not.

texasredrider

Just went by the local 4wheelparts store and talked with a guy and he said that the 6.25in backspace would look crappy because it would make the wheels look too tucked under the truck. My 315's look like I want them and could stick a little further out even, but it would not look good tucked too far in. Is that how backspacing works? He said the stock backspace is 5.00in and to get as close to that to keep the look I want. Is this correct?

texasredrider

Also what is "Offset" as it relates to tire position?

ptgarcia

This is why I do research before making a decision like this, and why I avoid 4Wheel Parts. Stock backspacing is about 6.25" (+41mm offset, plus or minus a couple mm). If you get a wheel with 5" b.s. and the tires you spec'd they'll rub.

ptgarcia

Offset is the distance from the centerline of the wheel to the mounting surface, usually measured in millimeters. A positive offset puts the mounting surface outboard of the wheel centerline.

ptgarcia

My wheels are 9" wide with 5.7" b.s. and +18mm offset. I wrapped them in 325/70-17 Toyos:

jamesbfishin

The stock wheels have 6" backcpacing.

Offset. The distance from the centerline of the wheel to the face of the mounting surface of the wheel that contacts the hub.

Zero Offset. Indicates the mounting surface is at the wheel center.

Negative Offset. Indicates the mounting surface is behind (or inboard) the centerline of the rim. This is often found on standard rear-wheel-drive vehicles and on so-called reversed rims.

Positive Offset. Indicates the mounting surface is in front of (or outboard) the centerline of the rim. This is often found on front-wheel-drive vehicles. Stock Tacoma wheels have Positive offset.

With the look your trying to achieve, which is similar to what I want (1" or so sticking out) a 17x9 with around 5.5" - 6"" backspacing will get the job done, I wouldn't go any less than 5" or you'll be out too far.

The wheels I'm looking at are a 17x9 with 5.25" and I posted a pic in a thread titled "is this realistic" in the Non drivetrain forum, maybe that will help



pt beat me to it and as usual has some great info there

texasredrider

Pauly, THANK YOU!! So the original tire combo I wanted looks to bring in the tire in about 10mm if I understand correctly, or does the actual width of the rim play a factor as well. Sorry for all the questions, just doing my homework.

texasredrider

James, would this apply to the 20 inch rims with 6.25 BS and +32 offset? it's close and the picture above that Pauly put up is pretty much the look I want, MAYBE a hair more but thats it.

ptgarcia

When quoting wheel specs be sure to include wheel width. A 10" wide wheel with 6.25" b.s. will stick out 1" more than a 9" wide wheel with the same b.s.