The Double Diesel set is listed as a NEW addition in Bachmann's 1988 catalog. The set
featured an Figure 8 track plan. A pair of red and silver Santa Fe U36B locos, one power and one dummy, headed up three
frieght cars and a caboose. This is one of the first places you'll find the revised tooling U36B with wide open pilots
to allow for truck mounted couplers.