Dont know if this will help
after my question on the 17/12,we have followed some of your comments,we have fitted 35x10.5x15 Simex extreme Trackers on our Bj40/Fj40 is the same body
we have 4in lift kit, we used local aftermarket springs made by Belton Malaysia [they are the ones that supply a lot of springs to acessory shops who then put thier own sticker on them n sell them as thier own!!![suprising what you can find on the net]
we fitted new bump stops to the front so we have 75mm clearance between top of axle n b/stop,we put Rancho 9000
shocks front n rear, n have shimmed the front axle to compensate for the lift [castor angle]. and adjusted the steering stops for wheel movement, [not a problem for off road] only street use,we have tried it n it works ok[only a bit of rubbing on the front fenders during heavy mountain road climbing] we will now fit a round bar around the front fenders n weld it completly to the fender to stop it doing any damage to the tyres [dont want to alter the shape] what we have found is that during mounian road climbing the front axle wraps a lot in 4wd this also pushes the tire up to the fender,so am now thinking about trying to put a tractionbar on the front[any ideas??]
We had also fitted Brians rear axle traction bar and modified the rear arches up to the top of the wheel arch n extended the flare 50mm n dont have any problems there
we are using Lockrites front n rear n power steering from a Highlux [easy to get here]
Thanks for all your help wish i had found your site earlier would have saved me a lot of trouble
Ron