Pro-Comp 18" Wheels, another backspace question

[64physhy]

I'm looking at some 18" pro comps, 18 X 9 with 0 offset. Would that be 4.5" offset, and would they work on an '08 F250 FX4 with 33" tires and no lift?

[MDarrough]

A 9" wide wheel with a 0 offset has a 5" backspace. You have to add an inch to the width, then divide by two.

The 08 18" Lariat wheels are 8" wide with a +45mm offset or 6.25" backspace.

So that wheel would stick out 2.25" more than the stock wheel. 1.25" less backspace and 1" wider, so 2.25".

I THINK you would be ok with just 33s, but not positive. Turn your wheels all the way and see how much clearance you have after you factor in the 2.25". Don't forget about the suspension squating some too going over bumps.

Mark

[CT Performance, Inc.]

I would stick with the factory offset

[Discount Tire]

What Procomps are you looking at 64physhy? Are they available in a higher offset? MDarrough's numbers are right on, if you like the wheels sticking out they should work for you as long as you don't go with too wide of a tire. 285/65R18E should be plenty. 295/65R18 may push it with these wheel specs.

[64physhy]

It was a set on ebay, so there was no choice in offset, size, etc. Auction's over now, so I guess I'll keep looking. Wheels aren't a really high priority for me right now, but the price was good, so I considered it. If I swap the wheels, I'll wait until the tires need changed and do it all at once. I've also been thinking of painting my stock wheels. Seems that keeping stock wheels now is more "Original" than going aftermarket, and it seems like I only see about 10 different aftermarket wheels on SD's. Thanks for the replies

[Discount Tire]

No worries, Let us know if we can help you in the future.