Another weird one, Mack's response to the Brute, the DMM...
I drove something like that in Queensland many years ago the model was DSX811 had 250 c motor quad box heavy arse end on 24 inch rims (grader tryes) triple chassis rails and the best part air over hyd brakes they had 20 cubic metre dump bodies they were owned by Alex Tenkate in bris in the early '80s we worked them on the gateway arterial construction doing the cutting at Mt Petrie near the rifle range also drove an old R22 Euclid that had the 220 cummins removed ond a 400 big cam in it's place but that's another story Regards Peter
Is this the one you mean?
I'm also surprized no one mentioned one of these beasts:
g'day Swishy and all .. the K100 Series with ''B'' series cab (taper rail chassis) cabovers took over from the 500 Series (straight rail chassis) cabovers.....until KW decided to go back to a straight rail chassis when the improved ''C'' cabover cab emerged in the USA in about 1966