Mack "R" vs Mack DM600

[Luc Janssens]

Guys, what's the difference between Mack's "R" vs "DM" designation?

Thanks in advance for your input.

[Fat Brian]

The biggest difference in the kits is the offset cab in the DM600 and the steel butterfly hood and V8 in the DM800.

[Jim B]

The DM is also Mack's vocational chassis (DM stands for Dump/Mixer).  The R-series is a more highway oriented truck.

[maxwell48098]

In addition to the obvious cab offset, DM series (produced from 1966 - 1988) chassis were much heavier duty than the standard R series (produced from 1965 - 1990) .  Mack also offered the RD and RM (1971 - 1990) series which basically the heavy duty DM chassis with the R-series cab.

[DRIPTROIT 71]

Just to add to what everyone has said, there was also the U model which was more of a highway version like the R model, but with the offset cab.

[Luc Janssens]

Thanks for the input guys, so for a Mack with dumper body, one can use the Amt "R" cabin with the Mpc "DM 600" chassis (don't like the offset cabin

 

[Jim B]

Yes, then you'd have an RD.

[Ben]

Main differences are that the DM hood is shorter and it’s cab is offset to the right.

[Fat Brian]

You're not going to see a lot of the chassis differences in a model, I don't think it would be necessary to swap the R cab into the DM600 chassis. The R chassis will be fine for a dump truck.