How many threads is 1" drop for grond control sleeve. Meaning how many threads do I count down from the first top thread on the sleeve until it's 1 inch or 2 inch etc. Can height adjustment be done before installing them on the car. My problem is that i dont have a spanner wrench and I think it would be time comsuming adjsuting one at time once on the car. I would like to adjust a 1 inch drop on all sleeves then slap it on car n go. Is this possible.. please someone help....