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Yea I havnt found that spec either:) I have seen a GM spec, 300HP@2600 RPM and 732FT/LB. So guessing ~715FT/LB for the 290hp... The 1079 curb weight is 18,834, but that includes 1000# of crew and fuel weight. Fitted out for camping maybe just over 20K? Lets say 22K... 715FT/LB nets you...

This is one of those places where alignment is important. Usually with a turbo involved there is typically a flexible section fitted into the mix to take any posdible strain/leverage being applied to the downpipe from the rest of the exhaust, out of the equation. Since we dont have a...

I like it. Was working on a way to power a set with an air motor:) I think my wife would be more comfortable getting in or out with a more solid and visible step..

Manual says the diff level is acceptable if within 1" of the bottom of the fill hole. I forget where that is exactly, will have to look it up. The rear hubs are tied to the axle pumpkin so will ultimately find their own level, and any excess will flow bacl along the axle To the pumpkin. But...

Got a peak torque spec For the 290? Oh and a target weight?

Keith, that wasn’t really the point I was trying to make, he could have gone a lot slower, even down to a crawl, because it appears he had the torque he needed to do so on that slope. Like in sand and snow, a little momentum can help carry you across fluctuating traction, but it doesn't last...

Sounds like you exceeded peak torque RPM, so you had torque to spare. The real test would be to stop on the hill then start again, noting the engine RPM at which it just starts to move again. I have a 3116 so that is where my math is mostly based around. I have not been able to find an...

Thanks! I think the transmission is happier being more heavilly loaded. I suspect the pulse width control programming was never quite right or even optimized for the 7.8:1 axle ratio. Since I started playing with one of these and its hard shifting(mine is a cab and chassis at ~14K), I have...

Never seen one of those before. The ID plate in one of your pics says made for Cummins. Delco discontinued production of the 30SI, but you could probably still get parts for it, well maybe not for the dual volt circuitry/control portion… I way prefer commonly available/in stock, to expensive...

Can you list your engine model/HP and the total weight of your vehicle?

So all the other damage was done taking it off? On the forward side of the filter where the hard line from the lift pump enters the filter, there is a T fitting. Hook up a 100PSI gauge there and check the base fuel pressure there. You may have a regulator issue or clogged return path to the...

Yes you can have cab air on when you lift the cab. The air springs have internal shock absorbers that limit their travel…

They listed the wrong engine in the one I got, they gave me a grand back:)

The leak location does sounds like the cab air ride height valve. if you look in past the front of the air filter, you should see a blue-grey box about 2” square with a lever in the middle pointing forward(9 Oclock). The lever attaches to a link rod that goes up to the arch that has the cab...

What year and version truck(A0, A1)? You only need to run the pump far enough to get over the balance point when lowering, gravity does the rest. When raising, how full were the air tanks? With full tanks(125PSI), you should be able to raise the cab twice...

Also as mentioned, S&S has been gone for a while. You should be able to find a history online of the LMTV contract and production(dates and manufacturers), that show that it is not possible for them to have produced this vehicle in 2023… Allison should also be able to confirm production date...

Yea I would go with the VIN info lostchain listed and a reference for how that Information is broken down. You could also pull up your engine info by entering the serial number into cats website. That should give you the build configuration and production year information for the engine. That...

Not yet, was going to submit it to another one... lot going on right now unfortunately...

See those metal tags? You should be able to ID the wires with them and associate the wires to their use. Not including the nato plug wires, you have 4 main power wires. 24v to starter solenoid. 24v to polarity box 12v to polarity box Ground to starter motor housing(and on to frame via...

Yep, 12 and 24v measured to ground on those large manual switch and disconnect relay terminals. Remember, voltage is only good when measured good with load applied. A nasty high resistance connection will still pass full voltage until you try and pull current thru it. That 12V measured on the...