The advantage of the 325/65R18 in the Terra, is it exists. You would need to go to another tire for a 35x12.5R18LT.Ordering a CST 4" lift, and I need to nail down the rubber I'm going to go with. Going to mount them on my stock 18s. Nitto Terra Grapplers.
Main question is, is the 35 taller than the 325/65? I realize that the 325/65 is wider, but in many of the pics that I've seen, the 35's look bigger overall.
Finally, any advantages / disadvantages to either?
The disadvantage of the 325/65 with stock rims is that they will likely rub on the CST spindle. If you get new rims look for some with a 5" or even a 4.75" backspacing to get some more inner clearance than the stock's 5.5" backspacing.
Or try a Toyo in a LT285/75R18 or a Kumho KL71 M/T in a 35x12.5R18 which is really skiny, like around 11".