You do mean DOFASCO trucks,rite ?
Dofasco made much more than the Hi-AD 3 Axle trucks
and ZWT 2 axle trucks for MLW.
have seen EMD Blomberg trucks under Amtrak F40s with
the Dofasco signature on them
they also made 3 Axle HTC trucks for GMDD.
Dofasco was a major supplier of Passenger and Freight
trucks in Canada over the years.
Spikre
.