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Just want to add another vote for Progressive Commercial Insurance (in UT). I insured my 2003 M1078a1 today through Progressive Commercial and they were super helpful, super easy and super quick. I upped the coverage levels to match what I have on my daily drivers and it totaled about $680 for...

New M1078a1 owner here in Marin County. Howdy.

Got it! So that jumper effectively connects BT1 & BT2 in parallel at 12v. Makes sense now that you say it. The 1078 that I just purchased was/is wired as shown in the following photo. It kind of twists my mind when I look at it but I guess it is just parallel in series versus the series in...

I have a follow-up battery wiring question. In looking at the battery wiring diagram it all makes sense to with the exception of one connection, which I have circled in red below. From my understanding: - BT1 & BT3 are wired in series for 24v and BT2 & BT4 are also wired in series for 24V...

Thanks for the guidance on the air system and on the electronics. I saw those three switches behind the passenger tire and had them on my list to research - you just solved that for me. Thank you. I had read about some external controls for maintenance purposes - I assume that is what those...

So I picked up a 2003 M1078a1 last week with 8,700 miles on it. What a learning experience this has been so far - all part of the journey. I picked it up late on a Friday in Idaho and drove it 500 miles overnight to California on what was a relatively uneventful drive. The prior owner...