Another tire question. Looked but didnt find an answer on other threads (might be because im tired too)

Ok, stock 18 rims. What is the largest tire size i can do (with the lift kit installed) dont want larger then 32/31.5.

also, what is the widest i can go?

Understand about the cladding trim, not a problem.

thought about asking the people at the tire store, but then thought go with who has done it already for best results.

Thanks