I noticed on the Technical section it says on a 73-91 4x4 that 32x11.50 will need minor trimming and that 33x12.50 needs a 2.5" lift. I checked out my 90 Jimmy and it has stock 31x10.50 on it and it looks like I could put 33" tires on it without any rubbing. Can I do that or will I have a problem. I do plan on putting a 4" lift on in the future, but I want to check this out and make sure everything is working ok before I put a lift on. I will need new tires soon. I don't want to buy new tires now then next year by another set of tires to go with the lift. Any help would be great and thanks for the help.