In my opinion, the best discovery/advantage of the Borgsn box is the reduced weight... lower weight here/there, etc., in particular in the front of the car, adds up to faster performance (accel/decel.. and E/SPspecially cornering). As we know, the Borgsn box is a more modern design and thus gives better road feel and response.
Despite the hassles of the Borgnsn box, IF I could run it, "legally" in the SCCA E/SP classification for Solo/autocross, I'd definitely do it.. E/SPecially, again, for the weight savings. The Borgnsn box would be great to add for any of our cars campaigning in the CAM SCCA class of Solo racing, or else with the C/P class.
I run a T/A ps box (having the longer Fast Ratio Pitman arm, as well as the longer c-body idler arm to correct the steering from the factory oversight with the T/A ps box. Adding the longer arms (pitman/idler) to any regular Mopar old-style ps box also gives the same fast-ratio of ~12.7:1.. and, using a non-T/A ps box (ie: regular) allows slightly tighter turning radius than a T/A box... but also scrubs the frame rails a bit more, pending rim offset/backspacing/size/diameter of tires.
I often wonder what is the difference between the Firm Feel rebuilt boxes vs. the Steer and Gear? Anyone know? Internal parts, springs, etc??? I'm considering having my T/A box rebuilt (1st time for it, ever)... slight fluid leak from the lower seal.... and determine what stage.. II or III would be best for me (pylon autocrossing requires very fast motion back-forth... although I'm also more recently active with HSAX/HPDE road course events).
