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Ok you are quite correct that the glow plugs are wired in parallel. But in the case of the patio lights, the line voltage stays constant with the grid. In the HMMWV, the battery voltage dips significantly with the nearly 80 amp draw of all 8 plugs (the voltmeter dip we see). When you start...

When one fails, the remaining 7 see higher voltage as the system is not dragged down as much, which causes them to glow hotter, which causes another to fail, rinse and repeat.

JATOs attach there.

So you bought a fully serviced truck from “MME” and after 700 miles the front differential chewed itself up?

I have never used the center bows with a canvas top, but since they are removable, if the little bows push up too much, just take them off. All the tops are intended to fit the 2 1/2 and 5 ton pattern trucks. SECO is a great supplier, they are legendary in the army truck business.

From 1951 until the 80s there were no center support bows. Those seemed to come about with the insulated tops.

Yes. Air is used to push on a diaphragm which compresses the spring, which pulls on a plunger that allows the wedge to retract that forced the shoes against the drum.

Need to narrow down if the spring brake is getting air to release before getting into the wedges.

sucker born every minute

Thoroughly check the connector pointing up in the engine bay for corrosion between the wire strands and the pins.

Time to pull up the transmission cover and open the inspection cover and see what’s going on in there. Sounds like the pressure plate is shot.

That is perfect now. It is the correct top. The vinyl top without the integrated front and rear curtains replaced canvas in the 70's and 80's.

Carefully hammer it closed?

For sure not for a 5 ton. Are there any numbers stenciled on it?

Hate to be Debbie downer but that top doesn't look right either. The tie ropes should line up perfectly with the tiedowns.

I think that fits the WWII Dodge 3/4 ton WC's. Missing the lower louvered parts. Photo credit "command-car.com"

You are very wise to buy an Eastern unit. The Eastern 1025 GMVs are special trucks and did not rot for ages unused in GA or CA. Love mine, runs like a scalded dog.

For sure. Hundreds of fire departments all over the US have these trucks now and desperately need repair parts to keep them operational for years to come.

Absolutely this is a job for a pro that does this all day long. Call around to local heavy truck repair shops and ask which glass shop they use.

Rubber tire is super early. Deleted due to rubber shortage.