I am interested in putting some bigger tires on my 1979 FJ40 as part of my frame-off renovation. Was thinking about 12.50 x 33 Super Swampers SSR on 15 x 8 wheels. I have a 4" lift kit from TPI. But a buddy of mine said he wished he had gone with the 35" SSR's. Do you guys have an opinion or experience in running 35" tires on the 79 or later Landcruisers which have the 3.70 differentials? Do you think it would work, or would I have to regear the diffs with 4.11's or even lower? I was thinking about going with the 35" SSR's and doing a Saginaw Power steering conversion for greater strength, but a friend mentioned the existing 3.70 differentials might not work too well with the larger tires. And that I would probably have to change out the differential gears to be happy with the performance with that large a tire. I would probably just go with a Mini-truck PS conversion if I went with the 33" tires. Any opinions would be appreciated. Thanks a lot, appreciate all the information on this board. Jim D.