rhasler Posted May 22, 2011 Share Posted May 22, 2011 Mucking around today I found a Mack model I had never heard of before. According to the production listing I have of Mack Trucks from 1900 to 1990, the MP404X was built only from 1976 to 1978. The entire production was only 20 chassis. The parts pictures I was able to see are something else. The truck I looked up had a Detroit 12V71, Clark model 8820 transmission, all wheel planetary drive using Mack CRS139/140 carriers, 29.5 x 35 tires, weird articulating suspension, really a strange truck. Has anyone here ever seen one of these?Here's the parts picture of the cab and hood 1 Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment Share on other sites More sharing options...
randyp Posted May 22, 2011 Share Posted May 22, 2011 Mucking around today I found a Mack model I had never heard of before. According to the production listing I have of Mack Trucks from 1900 to 1990, the MP404X was built only from 1976 to 1978. The entire production was only 20 chassis. The parts pictures I was able to see are something else. The truck I looked up had a Detroit 12V71, Clark model 8820 transmission, all wheel planetary drive using Mack CRS139/140 carriers, 29.5 x 35 tires, weird articulating suspension, really a strange truck. Has anyone here ever seen one of these?Here's the parts picture of the cab and hood Never saw on those Rhasler, kinda like it though. randyp Quote Link to comment Share on other sites More sharing options...
ThaddeusW Posted May 22, 2011 Share Posted May 22, 2011 Mucking around today I found a Mack model I had never heard of before. According to the production listing I have of Mack Trucks from 1900 to 1990, the MP404X was built only from 1976 to 1978. The entire production was only 20 chassis. The parts pictures I was able to see are something else. The truck I looked up had a Detroit 12V71, Clark model 8820 transmission, all wheel planetary drive using Mack CRS139/140 carriers, 29.5 x 35 tires, weird articulating suspension, really a strange truck. Has anyone here ever seen one of these?Here's the parts picture of the cab and hoodNot sure if its related to the Mack Pack, a hulking 2 axle articulating belly dump truck (or side tipper). Very few were made and 20 sounds about right. I don't believe any are still around. 1 Quote -Thad What America needs is less bull and more Bulldog! Link to comment Share on other sites More sharing options...
Lmackattack Posted May 22, 2011 Share Posted May 22, 2011 About 15 years ago I passed a yard with one of these things .it kinda looked like a scrapper. Was parked near rt14 and rt31 in crystal lake il. Never seen another one like it. 1 Quote Link to comment Share on other sites More sharing options...
spud Posted May 22, 2011 Share Posted May 22, 2011 looks like the bonnet and cab off the offroad logging trucks from th b.c. cananda area. could be wrong tho!cheers spud Quote Link to comment Share on other sites More sharing options...
rhasler Posted May 22, 2011 Author Share Posted May 22, 2011 Looking at the thing I kind of figured it for either a heavy duty logging truck or a quarry truck. Thad, it might be the Mack Pack.Trent is it still there? Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment Share on other sites More sharing options...
vision386 Posted May 22, 2011 Share Posted May 22, 2011 It sure looks like the cab used on the Mack Pack,but this is the only picture i could find of it.........Mark 1 Quote Mack Truck literate. Computer illiterate. Link to comment Share on other sites More sharing options...
Underdog Posted May 22, 2011 Share Posted May 22, 2011 It is curious that Mack would use a vendor engine in such a machine. Perhaps with the E9 still in development in the late '70s the engineers didn't feel their own V8 was ready to go.Gregg Quote Link to comment Share on other sites More sharing options...
bullhusk Posted May 22, 2011 Share Posted May 22, 2011 GO an Google Mack mp 404x then click on photo gallery for Ralph Ralcliffe ErnieD 1 Quote Link to comment Share on other sites More sharing options...
rhasler Posted May 22, 2011 Author Share Posted May 22, 2011 Thanks ErnieHere's his model of the MP404X: http://www.1-87vehicles.org/photo85/mack_mp404x_dump.phpNow that I see it I'm amazed at how monstrously awesome it really is! Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment Share on other sites More sharing options...
ThaddeusW Posted May 22, 2011 Share Posted May 22, 2011 It is curious that Mack would use a vendor engine in such a machine. Perhaps with the E9 still in development in the late '70s the engineers didn't feel their own V8 was ready to go.GreggGregg,The M series Macks almost all used big Cummins and Detroits. There were a few that used Mack engines such as the smaller single axle dumps and the M15, an M that used a tandem set of 80 mack rears with a Mack 865/866 V8.The M30 and bigger used Cummins VTA's or Detroit 12v71's or 16V71's. Quote -Thad What America needs is less bull and more Bulldog! Link to comment Share on other sites More sharing options...
ThaddeusW Posted May 22, 2011 Share Posted May 22, 2011 About 15 years ago I passed a yard with one of these things .it kinda looked like a scrapper. Was parked near rt14 and rt31 in crystal lake il. Never seen another one like it.I wonder where it went. Thats a real piece of Mack history right there. It would have been interesting if Mack went into the construction machinery business. Perfect match, Mack trucks hauling Mack loaders, dozers, excavators etc. Imagine a Mack dozer with a bulldog on the hood. Quote -Thad What America needs is less bull and more Bulldog! Link to comment Share on other sites More sharing options...
RowdyRebel Posted May 23, 2011 Share Posted May 23, 2011 I wonder where it went. Thats a real piece of Mack history right there. It would have been interesting if Mack went into the construction machinery business. Perfect match, Mack trucks hauling Mack loaders, dozers, excavators etc. Imagine a Mack dozer with a bulldog on the hood. I got a Mack Dozer...he's just a pup in this pic. Quote When approaching a 4-way stop, the vehicle with the biggest tires has the right of way! Link to comment Share on other sites More sharing options...
vision386 Posted May 23, 2011 Share Posted May 23, 2011 Heres a video of a Mack-pack and some other equipment i found on youtube,just listen to that detroit scream!...............Mark 1 Quote Mack Truck literate. Computer illiterate. Link to comment Share on other sites More sharing options...
ThaddeusW Posted May 23, 2011 Share Posted May 23, 2011 Heres a video of a Mack-pack and some other equipment i found on youtube,just listen to that detroit scream!...............Mark AWESOME! So there is at least one still around. Quote -Thad What America needs is less bull and more Bulldog! Link to comment Share on other sites More sharing options...
rhasler Posted May 23, 2011 Author Share Posted May 23, 2011 That thing dwarfs the rest of the equipment. It looks like it's still in pretty good shape too. Thanks Mark, good job! Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment Share on other sites More sharing options...
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