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That would be a M-30X, 30 ton cap end dump. Although it is large, it is not the biggest Mack truck ever built, that title goes to the M-100SX, a 100 ton tandem drive axle quarry truck / prime mover. Of which only 3 were ever made. it was powered by a 12V-149TT and rode on 21:00 x 35 rubber.

ap40

Richard Mark

Owner / Master Model Maker

Industrial Model Design
Ap40rocktruck

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I have always wanted the get my hands on one of the Mack script logos from the side of the hood on the m series, they were about double the size of an r series. I notice that Mack logo on the front of the hood is an early style later ones actually spell out M-A-C-K like on the road trucks.

"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"

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Looks almost just like the Euclid R-25 and R 22 haul trucks that we use as stockpile trucks at work. Have any details on these brutes?

Well if it truly is a M-30X (need the serial#)then something like this: 18:00x25 tires all around, Cummins NHRS-6-CI, 743 ci, supercharged, Mack TRDX-510, 8 speed duplex, FA-900 front axe & RASP-1203 for the rear. Fabricated wide flange I beam frame, semi elliptic springs front & rear.

Optional engines: Cummins NT-380 or DDC 6-110, Allison CLT-5840 (Cummins) & CLT5640 (GM)

box & hoist by Heil, 20 cubic yard with UT72-64 hoists. wb 165", oa width 135.2", aprox 15 5"tall.

anything else?

Ap40

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Richard Mark

Owner / Master Model Maker

Industrial Model Design
Ap40rocktruck

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yeah, top speed, gear ratios, empty weight, year made, who bought it first, and if one left Dallas, tex. at 1 pm tommorrow, and one left New York city at 3pm tommorrow, where and at what time would they meet or run out of fuel? Hmm..? randyp

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yeah, top speed, gear ratios, empty weight, year made, who bought it first, and if one left Dallas, tex. at 1 pm tommorrow, and one left New York city at 3pm tommorrow, where and at what time would they meet or run out of fuel? Hmm..? randyp

Man that is great! i needed a good laugh after today!

Ap40

Richard Mark

Owner / Master Model Maker

Industrial Model Design
Ap40rocktruck

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Can't afford a water sprayer truck? Next best thing is any DD ! And a 6-110 found very few automotive applications (too d-m big!). The 6-110 was used in every Budd Rail Diesel Car (100's built) in the 40's and 50's. They did a great job coating the rail tracks...."look Ma, no weeds" lol.

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