3" of lift and 33s or smaller seems to be the jumping off point before you start needing to beef up or relocate dirvetrain componants or other items.
Of course all of this depneds on use as an FJ with a 6" lift and 35's might not actually need a beefier diff, different gears, stonger axles etc. if it's only driven lightly on the street. You might still need address the dirveshaft angles though.
The FJ should be fairly competant stock or with a 3" lift and 33s. This from what I've observed here and experianced with my stock TRD Taco. My FJ is so new that I have not had a chance to take offroad yet. So far i love it though.. best of luck finding the one you want.
Of course all of this depneds on use as an FJ with a 6" lift and 35's might not actually need a beefier diff, different gears, stonger axles etc. if it's only driven lightly on the street. You might still need address the dirveshaft angles though.
The FJ should be fairly competant stock or with a 3" lift and 33s. This from what I've observed here and experianced with my stock TRD Taco. My FJ is so new that I have not had a chance to take offroad yet. So far i love it though.. best of luck finding the one you want.