2stacksuperdog Posted June 18, 2013 Share Posted June 18, 2013 http://www.rockanddirt.com/dismantled-for-sale/MACK/BOOM-TRUCK/invnum=43547 1 Quote Matt Link to comment https://www.bigmacktrucks.com/topic/31616-never-seen-one-of-these-before/ Share on other sites More sharing options...
RFCDrum Posted June 18, 2013 Share Posted June 18, 2013 Cool only seen these in pics. Quote Link to comment https://www.bigmacktrucks.com/topic/31616-never-seen-one-of-these-before/#findComment-189486 Share on other sites More sharing options...
umodelnut Posted June 18, 2013 Share Posted June 18, 2013 Mack made a rare single seat cab thingy but to me that looks like an imbred R model. Quote Link to comment https://www.bigmacktrucks.com/topic/31616-never-seen-one-of-these-before/#findComment-189494 Share on other sites More sharing options...
Offset-U-bet! Posted June 18, 2013 Share Posted June 18, 2013 I thought it looked like a CCC with a RD grill and badges but the puppy motor and gauges makes me scratch my head! Manufactures did some crazy stuff back then. Quote Link to comment https://www.bigmacktrucks.com/topic/31616-never-seen-one-of-these-before/#findComment-189513 Share on other sites More sharing options...
RFCDrum Posted June 18, 2013 Share Posted June 18, 2013 The only difference is they usually had a DM grille on the front so this makes this truck a little unique with that R grille in her. Quote Link to comment https://www.bigmacktrucks.com/topic/31616-never-seen-one-of-these-before/#findComment-189515 Share on other sites More sharing options...
umodelnut Posted June 18, 2013 Share Posted June 18, 2013 The only difference is they usually had a DM grille on the front so this makes this truck a little unique with that R grille in her.Yea they had a steel DM grill. Quote Link to comment https://www.bigmacktrucks.com/topic/31616-never-seen-one-of-these-before/#findComment-189520 Share on other sites More sharing options...
ap40rocktruck Posted June 19, 2013 Share Posted June 19, 2013 Those were known as the HMM, one man cab that tilts to the side for engine access. This was Mack's first venture into a front discharge mixer chassis.Rick Quote Richard MarkOwner / Master Model Maker Industrial Model DesignAp40rocktruck Link to comment https://www.bigmacktrucks.com/topic/31616-never-seen-one-of-these-before/#findComment-189538 Share on other sites More sharing options...
wastenafarmtrucking Posted June 19, 2013 Share Posted June 19, 2013 looks like a pipe truck. the cab is single seat and offset to accommodate long lengths of steel pipe. Quote Link to comment https://www.bigmacktrucks.com/topic/31616-never-seen-one-of-these-before/#findComment-189540 Share on other sites More sharing options...
Popular Post kscarbel Posted June 19, 2013 Popular Post Share Posted June 19, 2013 The Mack HMM Front-Runner was ahead of its time. 4 Quote Link to comment https://www.bigmacktrucks.com/topic/31616-never-seen-one-of-these-before/#findComment-189543 Share on other sites More sharing options...
2stacksuperdog Posted June 19, 2013 Author Share Posted June 19, 2013 Now that would be something cool to have, i would think that they are rare too. 1 Quote Matt Link to comment https://www.bigmacktrucks.com/topic/31616-never-seen-one-of-these-before/#findComment-189564 Share on other sites More sharing options...
RFCDrum Posted June 19, 2013 Share Posted June 19, 2013 These are cool. Quote Link to comment https://www.bigmacktrucks.com/topic/31616-never-seen-one-of-these-before/#findComment-189565 Share on other sites More sharing options...
glenlunberg Posted June 19, 2013 Share Posted June 19, 2013 The Mack HMM Front-Runner was ahead of its time.Your pictures are pretty cool. I like the colors of it. Quote Heavy Hauling Link to comment https://www.bigmacktrucks.com/topic/31616-never-seen-one-of-these-before/#findComment-189572 Share on other sites More sharing options...
kscarbel Posted June 19, 2013 Share Posted June 19, 2013 When we think of one-man half-cab vocational chassis, we probably tend to think of Crane Carrier. But Freightliner was quite active in this segment as well, begining with the WFHT in the 1960s and leading to the Uni-Body in the 1970s. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/31616-never-seen-one-of-these-before/#findComment-189575 Share on other sites More sharing options...
blackdog2 Posted June 19, 2013 Share Posted June 19, 2013 At least you dont have your boss breathing down your back. There is local company with front discharge mixer with double cab for training looks funny. Quote Ed Link to comment https://www.bigmacktrucks.com/topic/31616-never-seen-one-of-these-before/#findComment-189605 Share on other sites More sharing options...
Truck1536 Posted June 19, 2013 Share Posted June 19, 2013 The Mack HMM Front-Runner was ahead of its time.Great pictures and info. According to a Mack Model Production sheet I came across there were 14 HMM685's and 130 HMM6856's produced. Quote JohnLocal 282 Retiredhttp://www.flickr.com/photos/99031064@N00/ Link to comment https://www.bigmacktrucks.com/topic/31616-never-seen-one-of-these-before/#findComment-189610 Share on other sites More sharing options...
mackniac Posted June 19, 2013 Share Posted June 19, 2013 very interesting post ! some very unusual trucks . Quote Makniac , collector and customizer of die-cast model in 1/50th scale Link to comment https://www.bigmacktrucks.com/topic/31616-never-seen-one-of-these-before/#findComment-189612 Share on other sites More sharing options...
Superdog Posted June 19, 2013 Share Posted June 19, 2013 there was one of these in the "sound room" when I toured Allentown in '76. they only made 14 of HMM685's and 130 all wheel drive HMM6856's.Definately a rare dog. Quote Link to comment https://www.bigmacktrucks.com/topic/31616-never-seen-one-of-these-before/#findComment-189623 Share on other sites More sharing options...
gxbxc Posted July 12, 2019 Share Posted July 12, 2019 I wish one of the 3d printing guys would make a model of the HMM in HO/1/87 or 1/50 scale .One of the western heavy haul guys had some as tractors Quote Link to comment https://www.bigmacktrucks.com/topic/31616-never-seen-one-of-these-before/#findComment-427617 Share on other sites More sharing options...
Popular Post Truckfinder Posted November 18, 2020 Popular Post Share Posted November 18, 2020 (edited) I just found one of these fantastic trucks HMM6856S front runner. Drove it 110 miles home, drum spins nice and easy, the chutes work great! Everything works! VIN# says it’s 124th of the 130 made. Now just to figure out what to do with it? Edited November 18, 2020 by Truckfinder Add photos 4 1 Quote Link to comment https://www.bigmacktrucks.com/topic/31616-never-seen-one-of-these-before/#findComment-463991 Share on other sites More sharing options...
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