Mack Country Posted May 11, 2013 Share Posted May 11, 2013 (edited) I have a question about Mack RB and DM.Is this correct: Mack R model with a set back axle is a RB model?What is a Mack with an offset cab and a set back axle? DM or RB or ????What typ of Mack is this truck on the picture? It seems to have an offset cab.Best regardsBruno Edited May 11, 2013 by Mack Country 1 Quote Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/ Share on other sites More sharing options...
hatcity Posted May 11, 2013 Share Posted May 11, 2013 DMDM and U models both had offset cabs.U models were primarily road trucks Single frameDM's were for heavy duty work. Dump, Mixer, Heavy haul. double frame at least 1 Quote Success is only a stones throw away.................................................................for a Palestinian Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-182792 Share on other sites More sharing options...
2stacksuperdog Posted May 11, 2013 Share Posted May 11, 2013 Mack RB have set back axles and as hatcity said DMs and Us have offset cabs Quote Matt Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-182793 Share on other sites More sharing options...
umodelnut Posted May 11, 2013 Share Posted May 11, 2013 U models were mostly road trucks, with single frames. Lighter frames, axles, and stuff than DM's. Both U models and DM's have offset cabs.RB's have the set back axle and the slanted back fenders. The truck in the picture is a DM. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-182794 Share on other sites More sharing options...
Popular Post hatcity Posted May 11, 2013 Popular Post Share Posted May 11, 2013 What did I tell him?like a friggen echo in here 3 Quote Success is only a stones throw away.................................................................for a Palestinian Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-182795 Share on other sites More sharing options...
umodelnut Posted May 11, 2013 Share Posted May 11, 2013 What did I tell him?like a friggen echo in hereI had to contribute. Did you see my username? "umodelnut" Also, you never said U models had lighter axles, I did, you never said anything about RB's, I did, and you never said what the truck in the picture is, but I did. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-182796 Share on other sites More sharing options...
David Posted May 11, 2013 Share Posted May 11, 2013 Vinny, What is a RM? Quote Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-182798 Share on other sites More sharing options...
hatcity Posted May 11, 2013 Share Posted May 11, 2013 I had to contribute. Did you see my username? "umodelnut" Also, you never said U models had lighter axles, I did, you never said anything about RB's, I did, and you never said what the truck in the picture is, but I did.Look again! I said DM enter enter to then give a quick, brief description of the DM and U models.You're right. You are a nut 1 Quote Success is only a stones throw away.................................................................for a Palestinian Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-182801 Share on other sites More sharing options...
paul roncetti Posted May 11, 2013 Share Posted May 11, 2013 Vinny, Do you have a side view picture of an R and RB to show more clearly the axle position, Thanks Quote RONCETTI Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-182810 Share on other sites More sharing options...
j hancock Posted May 11, 2013 Share Posted May 11, 2013 From a 1989 brochure. Brochure indicates an axle set back of 11 inches compared to a RD model.Jim 1 Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-182818 Share on other sites More sharing options...
Mack Country Posted May 11, 2013 Author Share Posted May 11, 2013 Thank you for the information.Can I indentify a DM with set back axle at the number DMxxx ???Example DM690Bruno Quote Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-182821 Share on other sites More sharing options...
umodelnut Posted May 11, 2013 Share Posted May 11, 2013 Vinny, What is a RM?An RM is a heavier built R model with a steel nose, butterfly hood, steel fenders etc.I'll try to find R model pictures I must have some. Quote Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-182827 Share on other sites More sharing options...
umodelnut Posted May 11, 2013 Share Posted May 11, 2013 Here's an R model picture I took today. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-182828 Share on other sites More sharing options...
2stacksuperdog Posted May 11, 2013 Share Posted May 11, 2013 An RM is a heavier built R model with a steel nose, butterfly hood, steel fenders etc.I'll try to find R model pictures I must have some.Don't forget RMs are all-wheel drive 1 Quote Matt Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-182830 Share on other sites More sharing options...
slpwlker Posted May 11, 2013 Share Posted May 11, 2013 Forgot the most important part of a U. Need the counterweight or fat girl keeping it wheels down 2 Quote Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-182831 Share on other sites More sharing options...
Truck1536 Posted May 11, 2013 Share Posted May 11, 2013 Here are 2 RM Mixers from Long Island, NYCross Redi-MixD&A Sand & Gravel 2 Quote JohnLocal 282 Retiredhttp://www.flickr.com/photos/99031064@N00/ Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-182832 Share on other sites More sharing options...
2stacksuperdog Posted May 11, 2013 Share Posted May 11, 2013 RM closeup Quote Matt Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-182839 Share on other sites More sharing options...
paul roncetti Posted May 11, 2013 Share Posted May 11, 2013 CONFUSING Quote RONCETTI Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-182843 Share on other sites More sharing options...
2stacksuperdog Posted May 12, 2013 Share Posted May 12, 2013 Side of RBSide of R 1 Quote Matt Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-182846 Share on other sites More sharing options...
umodelnut Posted May 12, 2013 Share Posted May 12, 2013 R model side. Picture taken this past winter. 2 Quote Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-182862 Share on other sites More sharing options...
rsb502 Posted May 18, 2013 Share Posted May 18, 2013 I see no mention of dmmex....are they not dm models? Come in explain the whole R, RD and DM series variations I'm curious really I am. (I wouldn't just do this to see if someone answered,LOL) Quote "Any Society that would give up a little LIBERTY to gain a little SECURITY will Deserve Neither and LOSE BOTH" -Benjamin Franklin"If your gonna be STUPID, you gotta be TOUGH" "You cant always get what you want, but if you try sometimes you get what you need" Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-183967 Share on other sites More sharing options...
RFCDrum Posted May 18, 2013 Share Posted May 18, 2013 Side of RBDSCN0377.JPGSide of RIMG_0646.JPGI like the RB tanker on Canadian spread. Quote Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-183990 Share on other sites More sharing options...
thomastractorsvc Posted May 18, 2013 Share Posted May 18, 2013 I always thought RM was my first and middle name intials, now I am really confused, so I should have all wheel drive option, no wonder my wife is always telling me to get off of her, that expains it Quote Robert"I reject your reality and substitute my own." Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-183993 Share on other sites More sharing options...
JTFormula Posted May 18, 2013 Share Posted May 18, 2013 so if your DM gets stuck, find and RM to pull it out, and then if there are fat women there, get a U model for counter balance? I think I figured this whole thing out. Thanks! Quote ~ JT Burkard ~ AKA Sweaty Mackwww.jtresto.com www.wickedreputation.netwww.jonathanthomasmotorcars.com Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-183994 Share on other sites More sharing options...
paul roncetti Posted May 18, 2013 Share Posted May 18, 2013 If they have a steel nose aren't they a RD? What does RM have to do with it? Quote RONCETTI Link to comment https://www.bigmacktrucks.com/topic/31138-mack-rb-or-dm/#findComment-183996 Share on other sites More sharing options...
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