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torsion keys allow u to have correct alingment after cranking said torsion bars, however u can crank them a small amount wiht out adversly affecting your alingment
WTF are you smoking?
Re-indexed torsion keys do nothing more than allow you to increase the preload on the torsion bar beyond what the factory key will allow. It isn't recommended to crank the front end any more than about 2 inches unless you are friends with a front end shop, and the stock keys will almost always allow this. Higher lift on the front without new suspension components (a-arms, knuckle, shafts, etc) means reduced life on tie rods, ball joints, and cv joints.
You will still need an alignment after you crank the t-bars no matter how little you crank them. At a minimum, you'll have to reset toe, possibly camber.
If you have that rare ranger that for some reason doesn't have enough adjustment left in the stock keys, then by all means go buy some re-indexed keys AFTER you make sure they haven't already been cranked.