I am putting a leveling kit in the front and then I want 33" tires "E" rated what 12.5" wide.
So can I use my stock rims, or are they to narrow?
What width are the stock wheels?
If I need new wheels what size?

 

The stock 16" wheels are 7" wide and are really too narrow for a 12.5" tire, although some do it anyway. Ideally for a 12.5" tire you would want a 9" or 10" wheel, 8" at the min. I run 12.5" tires on my factory 18X8's with no problems other than a bit of rubbing on the leafs upfront. Any 12.5" tire on the factory wheels will rub the leafs, leveling kit or not.