I've read all the post on this, Frankly, Heidt's system installs easily, uses disc brakes, Rack & pinion steering. All of which we all need. At a price that's affordable. It's a "No Brainer" If you want to go into a corner so fast that it could possible fail, #1 your nuts, #2 Your abusing your classic. Quit wasting your money on a classic. Buy a full blown race car with a full frame and a roll bar, Stop worring about stuff that should'nt be tested on a 40 yr old classic. Put the Mustang II on your classic and drive like your saving it for you grandkids to see. Otherwise drive it to destruction and stop worring. When you wreck it, it'll just make my ole weak "Mustang II frt" 67 fastback worth just that much more. No then, bum $.75 and get you a cup of coffee.