Well there is alot of ways to lower the front. the easyest way yes is to turn down the torsions....but this makes for a very bumpy ride and camber issues. but yes turn down the torsions, witch the nuts would be going toward the end of the bolt...(im not sure on the 720s but in the 620 the bolt end is towards the cab and then on my 95 hardbody they went toward the ground.) ALSO make sure they are even..i measured from the ground to the lip of the fender for this
but the best way to lower it is to do drop spindles..they make for a stock ride and a lower truck! plus no camber problems.
...you can always fix camber problems with shims..but most places wont touch it if the suspensions messed with..:D thats just me tho!:D