I bought a 1971 fj-40 and I have a few ?. First I can buy front and rear axles from a 1977 fj with disc in front and lockers for both, but they have 3.73 gears and I would like to change them to my 4.11's possible or not? Also is fine spline better than coarse and can you change one to the other? The locker for the front is a lockrite it is not installed would you use this or should I sell this and wait for a selectable locker? This will be a semi daily driver, just for the fun days.;p I will be changing to a chevy smallblock soon. This is on the rough side so I don't feel bad about chevify this. I am taking photos so I can hopeing to show off like the rest of you! FJ's rock