Ok, what is actually needed to lower the car, like what would I have to buy extral, like control arms, torque box kits(what ever the hell those are), bump steer kits, this is strictly out of curiostiy for future reference!
technically, springs is all you need. i would strongly suggest investing in a few more parts tho.
such as -
springs
c/c plates
new isolators
shocks & struts
GET AN ALIGNMENT
caster camber plates ARE helpful when aligning a car after its been lowered. however, sometimes they are not a neccessity. sometimes the suspension geometry can be adjusted properly using the stock c/c plates. my personal opinion is to go ahead and get some, especially if you decide to lower your car more than 1.5". you can spend as little as $130 on a new set or up past $250. there are always used ones as well. i say buy new. i bought the cheapest set (UPR steel 3 bolt 'shark' plates) and they work fine.
isolators. not a have-to thing but if your car has many miles on it, the stockers are probably torn or dry rotted. you have the option of poly or rubber. poly is cheaper i think but the car may sit a tad higher as the poly doesnt cush like the rubber. several on here run springs with no iso's with no complaints. others that do this mention some noise and added vibration.
shocks and struts. buy some. you dont
have to but its a good investment, especially if your stock ones have lots of miles. the autozone gabriels are good and decent and not a bad choice IMO.
GET AN ALIGNMENT! ESPECIALLY IF YOU HAVE NEW TIRES. dont want the inside of your tires bald and the outside of them with full tread

. your local ford dealership should only charge you about $55 for the alignment.
other parts such as balljoints, bump steer kits, offset rack bushings are a good idea but i personally do not have experience with these. there are others here that can be more helpful regarding these parts and everything else mentioned
good luck
