I have read all the threads, been to all the websites, i need your guys help now. I have an 87 GT, with 1.75 coilscut in the front on 18x8 woth 225's on all four tires. Im working on the rear suspension now with fresh poly and struts and coilovers. I want this thing to sit just right. I want the STANCE perfect, like 1 inch between finger and tire. What can get me there? What do you guys have. Pics?. Super worried about getting everything perfect only to find out i can go any lower on Wcf kit or held kit, or my own pieced kit with 10" spring and 5" sleeve. Thankyou guys, my head is racing and it hurts, please help me out.
Something no one has mentioned in regard to coil overs. When you install a set all I hear about is ride height. The thing about CO is that they are infinitely adjustable and the issue of corner weighting comes into play. I would suspect that most people doing this mod try and measure from the ground to the crest of the wheel well to see get what they want. It takes a set of race scales to accurately dial in the correct setting on the suspension system at that point. Don't just rely on a tape measure or turns of an adjuster to get it right. handling could and will be effected if not done correctly. Just my $.02
Rear coilovers are quite easy as long as your wheels aren't to wide. I wouldn't expect 18X8s with 225 tires to be a problem at all. Mine were 17x8 with 245/55/17 tires, but that's on an 88 too. Either kit from the manufacturers you mentioned would get the job done. You will have plenty of height adjustment as long as you remove the stock spring perches from the struts and don't just leave the sleeves on top of the perches. I have heard of people doing that but I don't know how it would even be possible, really. You can also gather parts for your own kit elsewhere, like Coleman Racing or Ebay.
Mcguiver is correct about using scales to dial in a perfect balance but most would find this step a waste of time and money.