This is a popular mod overseas on the Toyota IFS trucks that never caught on here for some reason. I think because here in the states, good IFS modifications aren't as popular as the solid axle conversions and mods. Otherwise the truely awesome IFS long A-arm kits like from Total Chaos would be much more common.

Putting in ball joint spacers basicly lowers the spindle from the upper A-arm about 1.5", thus giving you that much lift. This basic premis is used on the Rancho upper A-arms and long A-arm kits like Total Chaos, where they build this extra lift into the A-arm itself.

What this does is give you the lift, without having to the crank in the torsion bars and reduce your down travel. You don't get the extra travel that longer A-arms would give, but you don't lose travel while gaining a bit of lift. You also gain some clearance at the front crossmember like you would by cranking the torsion bars which is a big advantage.

Actually there might be slight gain in possible uptravel as I think the distance between the lower A-arm and lower bumpstop is increased.