I am looking to upgrade from the stock 265/R60/18 tire and rims to an OEM 20 inch rim with tire. I have a 2009 Lariat with a 3.15 rear end.
My question is can I upgrade to the 20" rim without causing problems and what is the biggest tire I can go with without rubbing.
How will it effect the handling and driving?
Also if I want to level it, what is the best way to do it as there appear to be many different options available.
Appreciate any input.

 

A 2" leveling kit will make it sit perfectly level. With stock 20s you can fit 295/60r20 or a 33x12.50 without any rubbing if you level it. With the 3.15 rear end, any bigger tires is going to make it sluggish, but it should still handle well.

 

Most on here just use a leveling kit. Inexpensive and pretty much maintain factory ride. Maybe a little stiffer, but not much. Autospring makes good spacers, just search them on eBay. For 09 most say the 1.5 or 2 inch level. As far as what will fit, u can fit up to 35x12.5, but with the 3.15 gears, I wouldn't go near that big unless u consider regearing, which can be a little pricey.