Actually the length of stroke on a coilover depends on the manufacturer... I use AFCO or one of the other dirt track suppliers for my coilovers these days. The street rod people seem to think we should all be happy with about 3" of stroke, they obviously drive on nicer roads then I do...!!!!! I much prefer to have 5" to 7" of travel. This usually requires a bit of re-engineering on the attach points, but the extra travel is really worth it when it comes to tuning in the ride and handling!!!!! On the rear of the 'maro I'll probably use a pair of "Pro" large body aluminum shocks... They are threaded for coilovers and can be bought with really good travel, up to 9" of it!!!! Trying to work a deal on a set of Bilstein's for the Ranchero.... They are both kind of spendy, but ya get what ya pay for!!!!!!

Also have a friend of mine who does motocross forks and shocks for a living... He's getting ready to buy a new shock dyno and I'm first in line to get his old one...... Then I can do the insides of the coilovers with the valving and gas load that I want!!!!!