<<<<<<<<<<< the difference is very subtle and occurs only when cornering.>>> <<<<<<<<<<<his 67 Crown, It drives, steers and rides as an Imperial should with absolutely no decernable difference from the original>>>>>>>> <<<<I wonder if an alignment shop would know the difference or if they have to do something different to compensate >>>>>>>> The difference isn't quite that subtle. What the shorter arm does is alter the toe-out-on-turns geometry of the front end. It cannot be compensated for by alignment adjustments because it is a basic function of the design of the steering linkage, independent of the initial toe-in setting or the other alignment settings. One noticeable effect is that the steering wheel will not return to center correctly after a right turn. It's probably not a fatal flaw, but could be dangerous if the driver is unaccustomed to the car and unaware of the slightly quirky steering. Or in an emergency situation. I'd have to weigh in on the side of using the proper part, even if it is a couple of hundred bucks. 'Course I wouldn't put flammable hydrocarbons under 150 PSI or more in 35 year old hoses under the hood of a car, either. Maybe I'm just a wuss. :) Cheers Michael Roger and Michael in San Diego 67 Crown Convertible "Moby" 73 LeBaron Coupe "La Bomba 56 Sedan