Phase 1 Posted August 4, 2014 Share Posted August 4, 2014 The U was the evolution of the C model - and short B models. 2 Quote Link to comment Share on other sites More sharing options...
Red Horse Posted August 4, 2014 Share Posted August 4, 2014 I believe you nailed it Red Horse. Especially the White 9000's and later Louiville's and don't forget the 2000D's and Fleetstar A'sFor sure on the Binders-and also the GMC J??? later called Brigadier. What was OAL limit-back then? 55'?? Quote Link to comment Share on other sites More sharing options...
Green Dash Posted August 4, 2014 Share Posted August 4, 2014 For sure on the Binders-and also the GMC J??? later called Brigadier. What was OAL limit-back then? 55'??It was 55' at one time but I don't know the exact years or whether it was a federal or a state thing. A selling point of the 90" BBC's was that you could pull a 45' trailer and be within the 55' limit. The close gap between tractor and trailer is evident in some of the Jones pictures. 1 Quote Jim Link to comment Share on other sites More sharing options...
doubleclutchinweasel Posted August 4, 2014 Share Posted August 4, 2014 I believe y'all are all over it with the BBC thing. Not a "new" concept!Look up a B67 with Contour Cab. Shorter nose/fenders AND the concave cab. Lets you put the trailer right up against you. Lots of stuff they did back then had to do with getting a longer trailer behind them, and still staying within somebody's overall length limit.The U-models accomplished that without a great deal of re-engineering, and kept the majority of components "common" between several models. Coming from a manufacturing background, I can tell you the importance of sharing components across as many models as possible, as it severely impacts cost.Even on a U- or DM-model, when not used as a tractor, the shorter cab/hood made room for a longer dump bed or a larger mixer, while keeping the length more manageable.Then, in later years, the length restrictions relaxed. But, a shorter cab/hood still made sense in tight areas. And, once the marketing people got hold of it, the offset cab became "for better visibility while backing". They turned it into a "feature".I have driven a "sidewinder" before. And, yes, the view out the driver's side window while backing is great. But, as someone else pointed out, you practically lose the passenger's side of the truck!Most of the off-road dumps I have driven (Euclid, Terex, etc...) had the little "chicken coop" cab offset to the left as well. Same deal, I suppose. It did make visibility better out that window. And, again, the RH side was a looonnng way over there!Personally, though, I believe they just made the offset cabs to give us more ammunition to pick on Vinny! Falling over...kickstands...whatever. If we didn't have that, we might have to actually be nice to him! Sorry Vin! Remember; I kid because I care!!! Quote "Eagles may soar, but weasels don't get sucked into jet engines." Link to comment Share on other sites More sharing options...
Popular Post Red Horse Posted August 4, 2014 Popular Post Share Posted August 4, 2014 So what is so "new" about an "offset cab" To those of you from Central Mass, from the "Gargolinski Collection". This was an??LJWS??? 4 Quote Link to comment Share on other sites More sharing options...
farmer52 Posted August 4, 2014 Share Posted August 4, 2014 Most newer trucks have wider cabs and the driver sits to the left. Quote Ken PRR Country and Charter member of the "Mack Pack" Link to comment Share on other sites More sharing options...
doubleclutchinweasel Posted August 4, 2014 Share Posted August 4, 2014 Most newer trucks have wider cabs and the driver sits to the left.Accomplishes the same thing, doesn't it? Move the driver off to one side and the passenger to the other, and let the "dog house" intrude into the middle.Hey, I know what we could do! Make the cab full-width, raise it up, and put the engine directly under the floor. Do away with the hood altogether. Might have to make the dog house bigger, separating the two seats into 2 "pods". We could even think up something clever to call it...something that sort of described the shape...like, maybe COE, for Cab Over Engine. We could even abbreviate that, and call it a "cabover" for short!Wait...has that already been done? 1 Quote "Eagles may soar, but weasels don't get sucked into jet engines." Link to comment Share on other sites More sharing options...
j hancock Posted August 4, 2014 Share Posted August 4, 2014 So what is so "new" about an "offset cab" To those of you from Central Mass, from the "Gargolinski Collection". This was an??LJWS???Probably a little bigger.Thinking it is a LM model. 1 Quote JimIt doesn't cost anything to pay attention. Link to comment Share on other sites More sharing options...
doubleclutchinweasel Posted August 4, 2014 Share Posted August 4, 2014 Probably a little bigger.Thinking it is a LM model.LMSW-M or LMSW-L are 2 models I remember. I think, with that type radiator, it might be the LMSW-L. But, please don't hold me to that!Suppose that .."SW".. nomenclature is where the "sidewinder" nickname came from??? Quote "Eagles may soar, but weasels don't get sucked into jet engines." Link to comment Share on other sites More sharing options...
Superdog Posted August 4, 2014 Share Posted August 4, 2014 SW stood for six wheel 1 Quote Link to comment Share on other sites More sharing options...
j hancock Posted August 4, 2014 Share Posted August 4, 2014 SW was Mack speak for six wheeler which to us is a tandem.LJ is "standard' duty.LJX is a heavy duty, single axle LJ.LJSWX is a heavy duty, tandem LJ.SW seems to be gone after the L model. With the B model, it was B-61X single heavy duty and then a B-61SX was a tandem heavy duty. Quote JimIt doesn't cost anything to pay attention. Link to comment Share on other sites More sharing options...
yarnall Posted August 4, 2014 Author Share Posted August 4, 2014 I was shown Mack paperwork for A models that said "X=excavator". It did not specify heavy duty on the paper. I don't know how to interpret it, but that is what is said. Most B models I have seen with an X have heavier axles, but I have a B42X single axle dump truck that is not a heavy truck. I have a B 42S that is a tandem dump, ,but with no heavy components. I have a B42SX that had a tar body on it that has very heavy axles. I am no expert, just passing along what I have seen. Mike Quote Link to comment Share on other sites More sharing options...
doubleclutchinweasel Posted August 4, 2014 Share Posted August 4, 2014 SW stood for six wheel SW was Mack speak for six wheeler which to us is a tandem.LJ is "standard' duty.LJX is a heavy duty, single axle LJ.LJSWX is a heavy duty, tandem LJ.SW seems to be gone after the L model. With the B model, it was B-61X single heavy duty and then a B-61SX was a tandem heavy duty.Come on guys! That was a joke! Quote "Eagles may soar, but weasels don't get sucked into jet engines." Link to comment Share on other sites More sharing options...
Maddog13407 Posted August 4, 2014 Share Posted August 4, 2014 in a B42X, X meant it had double frame. quarry up by us had 100's of B42x's with double frames, 23,000 rears, 8,000 fronts. they all had Fa505 fronts with erie wheels, not the Mack ones and had 1100x20's on them with quarry treads. Mack lost the X in the Sx with the B42's later one. most of the 61-66 B42's were just B42S with 38 rears and FA517 fronts. Quote Link to comment Share on other sites More sharing options...
j hancock Posted August 4, 2014 Share Posted August 4, 2014 Come on guys! That was a joke!Nevermind.......Now, is it true that the passenger U model fuel tank was half full of lead for balance...? Quote JimIt doesn't cost anything to pay attention. Link to comment Share on other sites More sharing options...
doubleclutchinweasel Posted August 4, 2014 Share Posted August 4, 2014 Nevermind.......Now, is it true that the passenger U model fuel tank was half full of lead for balance...?Yes. Yes it is! Quote "Eagles may soar, but weasels don't get sucked into jet engines." Link to comment Share on other sites More sharing options...
umodelnut Posted August 5, 2014 Share Posted August 5, 2014 What nooooo Quote Link to comment Share on other sites More sharing options...
Popular Post doubleclutchinweasel Posted August 5, 2014 Popular Post Share Posted August 5, 2014 Vinny, You wouldn't be nearly as much fun if you had a B61 or R600! 3 Quote "Eagles may soar, but weasels don't get sucked into jet engines." Link to comment Share on other sites More sharing options...
Popular Post 1958 F.W.D. Posted August 5, 2014 Popular Post Share Posted August 5, 2014 Been looking through my tons of pictures, and would you believe this is the only lean-to I could find in my whole collection???Taken at the Inaugural Mack Trucks "Trucktoberfest" 10/30/2010 5 Quote TWO STROKES ARE FOR GARDEN TOOLS Link to comment Share on other sites More sharing options...
Phase 1 Posted August 5, 2014 Share Posted August 5, 2014 Most of the off-road dumps I have driven (Euclid, Terex, etc...) had the little "chicken coop" cab offset to the left as well. Same deal, I suppose. It did make visibility better out that window. And, again, the RH side was a looonnng way over there!Standard dump truck practice back then was to stand outside the cab or operators station and look backwards when backing up. Offsetting the cab allowed the operator to see past the dump box and still reach the steering wheel. I think it was the Boulder Dam Macks that had a platform to stand on with a throttle just for that use. Quote Link to comment Share on other sites More sharing options...
doubleclutchinweasel Posted August 5, 2014 Share Posted August 5, 2014 Standard dump truck practice back then was to stand outside the cab or operators station and look backwards when backing up. Offsetting the cab allowed the operator to see past the dump box and still reach the steering wheel. I think the Boulder Dam Macks had a platform to stand on with a throttle just for that use.I seem to remember seeing a picture of that. Quote "Eagles may soar, but weasels don't get sucked into jet engines." Link to comment Share on other sites More sharing options...
Popular Post Green Dash Posted August 5, 2014 Popular Post Share Posted August 5, 2014 Come on guys! That was a joke!How can you joke when there are U models tipping over left and......left?! 3 Quote Jim Link to comment Share on other sites More sharing options...
doubleclutchinweasel Posted August 5, 2014 Share Posted August 5, 2014 How can you joke when there are U models tipping over left and......left?!Aaaaaarrrrrrrgggggghhhhhhhhhhhh!!!!!!! Quote "Eagles may soar, but weasels don't get sucked into jet engines." Link to comment Share on other sites More sharing options...
cncFireman Posted August 13, 2014 Share Posted August 13, 2014 U dump for sale over here on the west coasthttp://spokane.craigslist.org/hvo/4552830595.html Quote Link to comment Share on other sites More sharing options...
umodelnut Posted August 13, 2014 Share Posted August 13, 2014 Looks like a DM. Quote Link to comment Share on other sites More sharing options...
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