Most of the guys in the first year classes are headed towards a career as a collision repair technician and focused on fixing dings and dents on their cars during open lab times. I took a little different route and started hacking, cutting and welding instead.
When the 406 was running well I could get it up to about 127mph and then it felt like the suspension started to loosen up and the car would rock around. Not sure if it was the wind getting under the car or funky aerodynamics but it definitely wasn't a smooth ride, more like driving a boat on choppy seas.
First order of business to smooth things over a bit was narrowing the bumpers. I looked on the net for ideas and saw several rear pans or narrowed bumpers that were tucked smooth with the rear 1/4. With as much real estate that a wagon has out back I didn't think it looked quite right, I think it looks better on the El Caminos I suppose. I also wanted to keep a somewhat factory look with some subtle changes so after measuring I hacked 3" out of the center with the plasma cutter.
Prior to this I had been welding a lot of thin sheet metal. Probably could've stood to crank up the machine for a little deeper penetration, so to be safe I welded the back side too.
Here's some comparison shots...
