I'm thinking of purchasing 18" wheels for my 1999 Superduty 4x4 and was wondering if I need to do any brake modifications? Or any other mods what-so-ever?

And does anyone run Motto MT700 18 x 10" wheels on their superduty and if so, any comments would be appreciated.
I was thinking of putting the Nitto Terra Grapplers, either 325/60R18 or 325/65R18 on these wheels.

If anyone runs this combo, I would appreciate feedback....

 

Hey Idaho Spud - Welcome to FTE!!!!

Dont' know about the wheels, I would assume you would have no problems other then possible spring rubbing. Unless you have a lift on the front. As for the Terra Grapplers, lots of guys on here are going with them, specifically the 325/65/18s -

Where are you in Idaho?? I'm in Meridian - if you find a dealer that can get a decent price on the Nitto's let me know - having a hard time finding anyone that can get them at under $300/ea

superPSD

 

I'm down in Malad (50 miles south of Pocy). I have found the grapplers for around the $250 mark on the Internet, but I would rather buy them at a local dealer, just for the follow-up service. I have my local tire shop getting me a price and I will be talking to him later this week. I'll let ya know what he quotes, even though that is a little far away for you....