I work with alot of engineers and wish I had chosing that career. I fabricate all that I work on, rarely order any aftermarket stuff, but in the long run, the aftermarket has a better product by the time you spend a week designing and welding, buying scrap metal. I sometimes believe that alot of aftermarket stuff is designed to sell you more aftermarket stuff that you could get by without them. I ask alot of questions before ordering anything. I am considering a bolt on mustang II front end from Chassis Engineering Inc., but I fear the requirements that go with it, such as recessed firewall, or new radiator mount, the car may sit too low for my taste, and I may have to be faced with 4.5 or 4.75 lub constraints. My car has the factory 40 ford wheels, they are 5.5. How will it turn with the new style rack and pinion and will the wheels clear the 6.50 x 16 40 ford wheels in the fender well. There are alot of factors to consider. I picked up the complete Cadillac 500 with the turbo 400 last night, thats a lot of room lost in my garage. Let me know if you have suggestions.