I have a 2009 f150 lariat two wheel drive,getting ready for my first set of tires.What is the biggest tire I can put on stock 18 in rims,
and if I put a three inch lift on what size.
THANKS

 

I would say go with a two inch level unless you plan on modifying the rear suspension or you will be nose high. 285/65/18 will fit with the level without rub and 295/65/18 will fit but may rub the slightest amount. May need minor trimming of front valance, minor.

 

I have 275x65x18 right now. I think that's the biggest you can fit with stock height.

 

Yes, do not install a 3 inch spacer lift up front. It will leave your ball joints at too severe of an angle to last. A 2.5 inch lift is the absolute maximum. You can probably fit a 305/65-18 (34x12.50) using your OEM wheels at that height.

 

I didn't no that and they did not tell me at the truck cage where I shop.
I am going to buy 265/70-18 michlin ltx m/s2 or nitto: crosstek hd,
theres a 100.00 difference higher,for michlins $365.56
$252.12 for nittos.
THANKS

 

You can fit a 33" tall tire on stock 2WD suspension. Will still clear with the rear end leveled 2 inches down.

We put 275/60R20's on a 2WD with the rear leveled with shackles and they clear no problem.

33x11.5 is about as big as you want to go on stock suspension.