There is a little bit more to this....This should help....

If you just jack up the truck untill the tires a off the ground, you will see NO improvment of downward suspension travel. (after the disconect)...

The advantage is, that in an offroad situation, where one front tire is up on an obstical (A-arm is botomming out on the bumpstop) and the other front tire is down in a hole; In this situation the tires are "fighting" each other ....
the sway bar is being heavily twisted.....

If the upper tire is "stuffed" into the fender so that it is in the maximum UPPER position, the sway bar will NOT allow the other tire to drop to the maximum LOWER position....disconcect it and the tires will articulate more independently and allow better travel in a extreme "crossed-up" situation


The other mod, the ball joint mount flip, DOES increase the downward travel by more than 1" especially with the use of a spacer....

After the BJMF, if you jack up the truck you will see an improvement in downward travel, and you will have to jack the truck up higher to get the tires to come off the ground...



BTW...My VX will ramp nearly 950 (w/o the front swaybar, BJMF with 1/2" spacer, trimmed bumpstops Frt/Rr, longer shocks in the rear, longer rear springs) But if you want this kind of performanc you MUST drop the front axle 2" to keep the CV axles from getting too much angle at these new travel lengths