Dmurph2016 Posted April 19, 2020 Share Posted April 19, 2020 I’ve never understood why the DM series has the strange cabs, does anyone know the reason for it? Quote Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/ Share on other sites More sharing options...
mowerman Posted April 19, 2020 Share Posted April 19, 2020 well i own one,,,,DM600and im not really sure,,,,but i watched a video a while ago and it explained only reason for it was leg room,,,,but it still doesnt explain what about the 800 series,,,,but i heard years ago....it was just for visibility ,backing in .......bob Quote Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449211 Share on other sites More sharing options...
Bullheaded Posted April 19, 2020 Share Posted April 19, 2020 Their reasoning was better visibility for maneuvering on construction sites, like a big haul truck. You could watch your driver side in line with the front fender. But that doesn't do your passenger side any favors, LOL 1 Quote Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449218 Share on other sites More sharing options...
james j neiweem Posted April 19, 2020 Share Posted April 19, 2020 Mack should have went with a wider cab from the Gitgo on the R series then the U and Dm offset wouldn't have been needed. They should have learned from the small B cab. Something half way between the R and the F model would have sufficed. Six - nine inches was all that was needed Quote Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449227 Share on other sites More sharing options...
Popular Post david wild Posted April 19, 2020 Popular Post Share Posted April 19, 2020 Well boys if you ever go out on a paving job or any job that requires you to be spot on then you would understand and appreciate the DM series of trucks but since most steering wheel holders can not back up anyway then you are right why bother with the off set cab, they were made when drivers had to back into places that drivers today would not even attempt but was everyday and all day. and that is why grasshopper. 3 Quote Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449229 Share on other sites More sharing options...
tjc transport Posted April 19, 2020 Share Posted April 19, 2020 (edited) same with the "U" model. made for city work where things got real tight real fast. first time i got into a "R" model i swore i was going to crash as i approached a toll booth. you don't realize how big that 12 inch or so offset is until you approach a tight space. Edited April 19, 2020 by tjc transport 2 Quote when you are up to your armpits in alligators, it is hard to remember you only came in to drain the swamp.. Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449232 Share on other sites More sharing options...
bulldogboy Posted April 19, 2020 Share Posted April 19, 2020 Is an "RM" the same as a "DM" but without the offset cab? Quote Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449237 Share on other sites More sharing options...
james j neiweem Posted April 19, 2020 Share Posted April 19, 2020 (edited) You are probably thinking of RB's that were not offset. Edited April 19, 2020 by james j neiweem Quote Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449243 Share on other sites More sharing options...
Vladislav Posted April 19, 2020 Share Posted April 19, 2020 1 hour ago, bulldogboy said: Is an "RM" the same as a "DM" but without the offset cab? RM is a kind of a DMM without offset cab. Quote Никогда не бывает слишком много грузовиков! leversole 11.2012 Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449244 Share on other sites More sharing options...
70mackMB Posted April 19, 2020 Share Posted April 19, 2020 1 hour ago, tjc transport said: first time i got into a "R" model i swore i was going to crash as i approached a toll booth. you don't realize how big that 12 inch or so offset is until you approach a tight space. Been there done that!! U model one night then an R model the next. l'd just close my eyes and aim for what l thought was the middle of the booth's lane. LOL! .....Hippy 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449246 Share on other sites More sharing options...
james j neiweem Posted April 19, 2020 Share Posted April 19, 2020 RM had the steel butterfly hood. Usually used as municipal trucks for plowing etc. Quote Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449247 Share on other sites More sharing options...
j hancock Posted April 19, 2020 Share Posted April 19, 2020 Yellow DMM driven front axle offset cab. Blue RM driven front axle center cab. 1 Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449248 Share on other sites More sharing options...
james j neiweem Posted April 19, 2020 Share Posted April 19, 2020 (edited) Mr. Hancock to the rescue. Offset cabs did give you a good line of sight down the drivers side. There was a predecessor to the U and DM back in the 40's or 50'sI forget the model' A huge Mack water truck sometimes makes the show circuits. FK maybe? It seems Mack out did them all by a long shot with the number of models Edited April 19, 2020 by james j neiweem Quote Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449249 Share on other sites More sharing options...
Popular Post Prowrench Posted April 19, 2020 Popular Post Share Posted April 19, 2020 The "U" model cab is off set for the purpose of putting the cab forward to achieve a shorter wheel base in order to pull longer trailers remember the R, U, DM debuted in 1966 The U an DM are basically the same cab as an R but you could not simply place the R cab forward over the engine because with the cab being narrow your accelerator would be on top of the engine. note R no dog house U and DM dog house. The DM 600 and 800 are for better weight distribution over 3 axles 3 Quote Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449250 Share on other sites More sharing options...
j hancock Posted April 19, 2020 Share Posted April 19, 2020 U model started in 1964 and the R and DM started in 1965. 1 Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449253 Share on other sites More sharing options...
41chevy Posted April 19, 2020 Share Posted April 19, 2020 (edited) 1 hour ago, james j neiweem said: Mr. Hancock to the rescue. Offset cabs did give you a good line of sight down the drivers side. There was a predecessor to the U and DM back in the 40's or 50'sI forget the model' A huge Mack water truck sometimes makes the show circuits. FK maybe? It seems Mack out did them all by a long shot with the number of models FCSW 1936 to 1947. There is a water tanker and a dump body that come to Macungie both have the pre L cabs Edited April 19, 2020 by 41chevy 2 Quote "OPERTUNITY IS MISSED BY MOST PEOPLE BECAUSE IT IS DRESSED IN OVERALLS AND LOOKS LIKE WORK" Thomas Edison “Life’s journey is not to arrive at the grave safely, in a well preserved body, but rather to skid in sideways, totally worn out, shouting ‘Holy shit, what a ride!’” P.T.CHESHIRE Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449259 Share on other sites More sharing options...
mechohaulic Posted April 20, 2020 Share Posted April 20, 2020 4 hours ago, james j neiweem said: Mr. Hancock to the rescue. Offset cabs did give you a good line of sight down the drivers side. There was a predecessor to the U and DM back in the 40's or 50'sI forget the model' A huge Mack water truck sometimes makes the show circuits. FK maybe? It seems Mack out did them all by a long shot with the number of models LM had the off set. arute had one 1 Quote Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449268 Share on other sites More sharing options...
mechohaulic Posted April 20, 2020 Share Posted April 20, 2020 11 hours ago, mowerman said: well i own one,,,,DM600and im not really sure,,,,but i watched a video a while ago and it explained only reason for it was leg room,,,,but it still doesnt explain what about the 800 series,,,,but i heard years ago....it was just for visibility ,backing in .......bob The 800 series gave a person the opportunity of higher horsepower for a heavy haul mover. imagine working on a 600 with a 864 /866 V8 or large cummins or cat. and besides what a beautiful majestic looking truck :DM800 LOL. Quote Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449269 Share on other sites More sharing options...
mechohaulic Posted April 20, 2020 Share Posted April 20, 2020 3 hours ago, 41chevy said: FCSW 1936 to 1947. There is a water tanker and a dump body that come to Macungie both have the pre L cabs the FCSW could be cause for debate as an off-set. the cab isn't flush with the body, has driverside fender wider then cab, bulldog on radiator cap some what centered with front windshield center line. hood design makes off set appear greater. drove both DM600 and 800 dumps basically you are on the body line. yes /no the FCSW was an off set relative Quote Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449270 Share on other sites More sharing options...
Popular Post mechohaulic Posted April 20, 2020 Popular Post Share Posted April 20, 2020 4 hours ago, Prowrench said: The "U" model cab is off set for the purpose of putting the cab forward to achieve a shorter wheel base in order to pull longer trailers remember the R, U, DM debuted in 1966 The U an DM are basically the same cab as an R but you could not simply place the R cab forward over the engine because with the cab being narrow your accelerator would be on top of the engine. note R no dog house U and DM dog house. The DM 600 and 800 are for better weight distribution over 3 axles I can blame half my back problems to those U/ D(a)M dog houses ;LOL , wouldn't want to count all the starters I changed through the yrs on off set cabs. half in cab engines no easy way to remove or install starters . raises havoc on body today twisting and turning half upside down. 3 Quote Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449273 Share on other sites More sharing options...
41chevy Posted April 20, 2020 Share Posted April 20, 2020 null 50 minutes ago, mechohaulic said: The 800 series gave a person the opportunity of higher horsepower for a heavy haul mover. imagine working on a 600 with a 864 /866 V8 or large cummins or cat. and besides what a beautiful majestic looking truck :DM800 LOL. DM600 http:// 1 Quote "OPERTUNITY IS MISSED BY MOST PEOPLE BECAUSE IT IS DRESSED IN OVERALLS AND LOOKS LIKE WORK" Thomas Edison “Life’s journey is not to arrive at the grave safely, in a well preserved body, but rather to skid in sideways, totally worn out, shouting ‘Holy shit, what a ride!’” P.T.CHESHIRE Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449279 Share on other sites More sharing options...
blackdog2 Posted April 20, 2020 Share Posted April 20, 2020 longer trailers...shorter tractors the DMs dumps were able to get more weight on front axle I have 4- DM-600s good frames this my newest addition 20-20-58-k 285-hp 6-speed 20" brakes..... I wish I can find more that are in good shape especially when milling .....some times a little over loaded by 5-6 ton's ? 2 Quote Ed Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449280 Share on other sites More sharing options...
Popular Post blackdog2 Posted April 20, 2020 Popular Post Share Posted April 20, 2020 Here's another 1 milling RT-1 Branford CT.with 1 of are RD's behind it 3 Quote Ed Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449281 Share on other sites More sharing options...
bulldogboy Posted April 20, 2020 Share Posted April 20, 2020 So, what model is this, RM? Thanks. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449318 Share on other sites More sharing options...
j hancock Posted April 20, 2020 Share Posted April 20, 2020 30 minutes ago, bulldogboy said: So, what model is this, RM? Thanks. That is an RD model even though the emblem says R600. It was available with the familiar fiberglass tilt hood or the optional steel butterfly hood. The RD model was introduced by Mack in 1970. The RD was built with heavy duty components for severe service. That would be a good chassis for the weight of a fire truck tanker. Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/62132-why-do-the-dm-series-have-the-strange-cabs/#findComment-449322 Share on other sites More sharing options...
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