[s-cars] Happersized RSB installation

[Ray Tomlinson]

I bent and cracked both of mine after a day at the track.  As Brian
indicated, the factory plates are designed to be used with the 17mm bar,
which you can nearly bend by hand.  Such is not the case with the HRSB,
which places a significant amount of leverage on the lightweight factory
plates.

The factory plates bend at or near where the "key" is tack-welded in place.
Simply tack welding the key is likely sufficient for normal street use.  For
track use, however, you need to beef up the factory plates.

I have not experienced the RR CV boot issue of which Brian complains.  My
bar is set on the middle setting, and both heim joint ends are threaded out
about 1".

Lee, the benefit of installing the HRSB on your avant is that the rear hubs
are already tapped for the factory plates, so you need not tack weld the key
in place.  Nonetheless, I would suggest doing so, if only to beef up the
plates.

Ray