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MP7 and an Allison that should make a great all around dump truck, and the MP7 should help your LW. Im looking forward to more info on how it runs as it breaks in with the SCR system, I dont know anyone running an SCR dump.

"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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Id be real tempted to go with an MP7 to keep my lw down but Im kinda addicted to HP and ZTorque so I might have to go with an MP8 but I would almost definitely go with an Allison 6or7 speed and some really high 4:something or 5: something rears. I really wish they made a single OD Allison instead the top two are both OD and you just dont need that it would help the torque multiplication to go with a 1:1 top gear and a 3:65 - 3:86 rear ratio or go with a single OD and a 4:42 - 4:64 rear. none the less the Allison is the way to go if you get into congested traffic and off road situations all day.

"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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Actually I think if I bought a new Granite for general hauling around here it would be a Set Forward axle Rawhide with, 18k taper leaf front, 16k steer tag, 44k camelback rears 4.76 ratio, MP7 405M, allison 4500RDS 6 speed, and a 16' Rogers Hardox barrel body. If I was buying one to stockpile I would go for a Set Forward axle rawhide, 18k front, two 14,600# steer tags, 44k camelback rears 4.42 ratio, MP8 505M, Mack 18 speed, and an 18.5' East smooth side aluminum dump body. All aluminum wheels and 385/65r22.5 front , 11r22.5 tag and 11r24.5 Michelin drive tires. Sounds expensive HUH?

"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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a local town my cousin works for just ordered there first mack . a GU713 single axle mp7 355hp 13 spd . not sure on the rear end specs . theyve had to many problems with the newer internationals so we hooked them up with the mack salesman

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  • 3 weeks later...

I really wish they made a single OD Allison instead the top two are both OD and you just dont need that it would help the torque multiplication to go with a 1:1 top gear and a 3:65 - 3:86 rear ratio or go with a single OD and a 4:42 - 4:64 rear. none the less the Allison is the way to go if you get into congested traffic and off road situations all day.

I know Allison's come in different flavors. For instance, an MD3060 has different gear ratios than a MD3560. I am not sure about the double overdrive, but they were designed for the different speeds/power of buses vs dumps for instance.

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