Need some wheel advice and help

[CdnGhost]

Hey guys, I have the stock 235 65R18 rims and tires on my 07 sport trac LTD.
I am looking at a set of 265 65R18 LT and the over height changes from 30" to 31" approximately... will this be an issue? I hear it can cause problems to my speedometer, ABS brakes and possibly the 4x4 and diffs etc....

Would love to know, or would I need to go to ford and having the computer updated for the new tire size? or is that necessary

Thanks

 

[Clint C]

Just put same tire size on mine, 07 limited v8, no lift. No problem at all. No rubbing. Stock wheel. Speedometer off maybe 2 mph @ 60 compared to the GPS app on my phone.

 

[nosdivad1]

I thought about 245/65/18 - ?
they seem plenty big enough. . .