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Tuesday's plan: item 4— CAT 3116 doesn't have glow plugs. She uses an inlet air heater—

As usual you are right—

If you zoom into the PPD the bottom lug looks like only one wire is connected? The one coming in from the left doesn't look connected to anything?

This may be related to the Allison comments of needing less gears. Their design encourages lockup as soon as possible to hold almost constant available torque through the gear changes. Keeping the engine in its power band as much as possible. You answered another of my questions about sitting...

I'll also note in the video @Ronmar shared the Allison boys commented that the medium sized engines didn't need the 7 speed. And I think all of us with EcoHubs have shown that is true—

We also have a 2003 M1078A1 (330hp tune) with EcoHubs We shift into 7th below 80 on our Bluetooth speedometer, below 75 on the dash speedometer. We like to sit in the 60-65 range (haven't added cruise control yet). At 62 in 7th we are at 1,200 rpm, 62 in 6th 1,500. She won't hold 7th at 60...

Their 14' departure angle with a 4 point torsion is what we are planning. Looking forward to seeing how yours comes together—

What habitat is about to be dropped on?

Thank you for sharing @Ronmar, this was very interesting. The two items I most appreciate are: 1— the torque equations versus gear ratios at final; 2— the explanation how they start with matching low gear ratios and work toward lowering rpm's in to the power band at nominal speed. 2— made me...

A 2007 M1078, is an M1078A1R isn't it? This truck should have a C7, MMDC, a different PDP, than an M1078A1 I believe—

Does an M1078A1 have an MMDC? or would that be an M1078A1R or newer? The Additional lights and voltage drop is a weird symptoms. What lights, where did the voltage drop?

The ABS light comes on, then off quickly at power up. Then if the controller is working you can hear the ABS system check front, back, front, back. Then if the system fails the light comes back on steady. If the CTIS controller is one from a unit other than the M1078A1, the pinout may be...

Wire 3020 returns ground side from the indicator lamps to the lamp test switch. Unplug the indicator switch and see what happens? That should provide power to gauges still, gauge ground is on wire 3002—

Wire 1546 also comes from the test lamp switch—

You have no power to gauges and one light in the indicator panel is racing through the idiot lights?

Not sure what "Dash indicator is Pacmaning" means X3 feeds CB77 to P301-14 to wire 1546 brings power to the gauges. Check the pins in P301? 1546 also feeds 24v to the 12/24 gauge switch—

This looks like a good Allison code manual. Code list begins on page 25. Found on this webpage. Good luck—

Check out Western Ranger on Youtube. He is @Gunny 0369 here: Beautiful, creative, capable rigs with slide outs—

We like your build, using the top rail to add your floor joists is quite beautiful, you extended the rails rearward, right? How far does your build hang off the back end? Perhaps we have been using a 5x9 trailer so long a 14' floor layout looks huge on our garage floor. We may not need as...

Sounds a lot better than a 1949-1970 Cadillac—