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Also Operating a big cam below 1700rpms means you want to replace some liners. They are not a low rpm motor when working

These are already double overdrive allisons. Which is equal to an RTOO14613. They will run 111 in their stock form with the governor turned to 2450. They don't need a $5000 18 speed.

Only issue with the air ride swap and using axles from one is the gear ratios.. most are 3.55s to 3.90s. The 915a4s use the same axles as the 915A0. A 4.44 so it would lose some of its low end grunt. Top speed would increase about 17mph

FLD120

When it's not 105 outside

Wheel seals tend to leak and have even had issues with the axle nuts backing off completely. Use these stemco pro torque lock nuts instead.

Since most folks don't like to ride in the bumpy sob there is no reason for a passengers side seat really. Made a raised section for more storage and space. Things on the floor find their way under your feet pretty easy in the stock setup.

DOC screenshot

Grote Corrosion Preventative Sealant https://www.grote.com/electrical-connections/tools/ultra-seal-corrosion-preventative-sealant/99170/

Pumps were rebuilt, aneroid deleted. #15 button. 275 rail pressure. Max egt is 1050 at sea level post turbo. Dual fuel line setup. Stock HT3B Turbo. Max boost is around 32/33psi. According to the Allison DOC computer readout showing throttle, shift patterns, etc it the engine is putting out...

Well the stock alternators are pretty crappy under heavy loads with extended idle times. Stock alternator is 140amp 24v and 50amp 12v neihoffs. Truck with blowers/AC on high, all lights on, flashers, trailer lights, transmission, AC condenser fans just basically overwhelms that 50amps that...

It's been done that's why it can hit 95 other than the 61 it maxes out in direct 5th. It's basically a 915a1 without the unlock

So tweeking and modifying a few of these for commercial use. Stock NTC400 Big Cam 1. HT3B turbo. AC. 6 Spd Allison 4500. Locked out of 6th gear though. 4.33 gears. 11R22.5s. Stock with the unlocked TCM it will run 96mph at the 2450 governor. Hauled grain up to 130gross today. Step one for...