I saw the six number, but I figured it was at the Mint or some non-Score race. There's something in the deep recesses of my tiny brain, but I recall someone mentioning an Olds tornado transaxle in regards to this Bronco.
My search shows that he ended up in the San Francisco bay area newspapers in Nov. of 1975. It stated that he owned the Toyota dealership Novato, and lived in Mill Valley. He also raced two SCCA rallies that were held in Reno in 81 and 82 He did alright in the first one, but rolled out of the race in the second. The later references suggest that he moved to Colorado.
I asked Sandy Cone this morning about what he knew of the truck. He said it was an a-arm front end with a 9" center section. He claimed his class 4 Jeep was faster, suggesting they never fully dialed the ifs.
The Bronco was originally raced by Bill Rush who won the 1974 Baja 1000 in class 4.
The original build was done by Smokey Allerman with Dan Shields, who became Rush's codriver and later went to work for Walker Evans.
Allerman according to Cone, still has the body molds.