Won't work on a Beck, Leon, as the front beam is welded in as as the forward chassis cross-member. Castor is adjusted by moving the eccentrics on the balljoints and/or by adjusting the rake of the entire car with the rear ride height adjusters. When I had my car delivered, Carey had raised the rear on my request, due to my fear of dragging the exhaust leaving the driveway. That was enough to change the castor by more than one degree, which made the car very twitchy. Just dropping the rear of the car less than an inch made a world of difference. Still, a good old-fashioned four-wheel alignment is worth the time and money.
One other item that really stumped me for a couple of years was some odd freeplay in the steering. I would turn in one direction, and there would be no effect for the first few degrees, followed by normal performance. When released, the steering wheel did not return all of the way to center, but remained pointing slightly in the direction of the most recent turn. If the next turn was in the same direction, there was no freeplay. If not, I experienced the looseness again, followed by the the steering wheel pointing slightly in the new direction. I pulled out the remnants of what little hair I have until Leon Chupp told me that he'd had the same problem. It turns out the the pinch bolt on the pitman arm-to-steering shaft joint must be waaaaaay tight, or there will be a tiny bit of slippage on the splines. I put a wrench on the bolt and slipped a piece of pipe over the wrench for extra leverage. I probably only turned the bolt 1 or 2 flats, but that solved the problem. I haven't had to touch it since.
