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The A1R is a bit of Frankenstein - generally being covered partially by the A1 manuals, and partially by the A1P2 LTAS manuals. Since the A1R trucks were intended to become A1P2's either with a field upgrade to the armored cab, or sent back to the factory for complete refit, etc. As mentioned...

Ok. Have been diligently chipping away at this issue and I believe it is now resolved. 1. Swapped the alt. Found an ugly duckling on the cheap due to an upper mounting bolt thread issue (stripped), bent fan and fan cage, missing pulley and ground strap threads stripped..... Fixed all that with...

It is definitely a bit of work. I have about 2 full days on the install spread out over a couple weeks as I have time. I would say the labor broke down about like this: 1. Fan, fan clutch, pulley installation. Includes dropping the lower fan shroud to remove the upper fan shroud, intercooler...

The C7 is identical to the 3116 and 3126 as regards the crank adapter and the compressor brackets, etc. I installed a new fan (yellowed blades from the desert) and a new fan clutch when I installed the belt pulley. It replaces a blank spacer that is between the balancer and the fan clutch. This...

What year is the M1079 you are picking up? It could use either a PPD (polarity protection device) or an LBCD (load battery control device).

I ordered back in November and it took about 5 weeks for all of it to come in. I would contact him and get an order started since he has them made in batches and many are spoken for before the web site gets updated with stock. He is the only supplier I have seen with the actual mil-spec...

I got everything from Tom at www.lmtvtrucks.com He's a member here on SS. https://www.lmtvtrucks.com/AC/index.html

I'm told by a MotorPool veteran of 20 years that "soft cab" trucks were basically never equipped with AC. He couldn't recall ever seeing one in fact. The A1P2 armored cab trucks all have it and in fact AC malfunction is a deadline. The AC only has to drop the ambient temp by 20 degrees F to be...

I was also warned by a 20 year motorpool veteran that you need to throw the disconnect switch anytime you are connecting or disconnecting the CTIS controller or for that matter any of the other computers (transmission, etc). If the pins don't all make contact simultaneously you run the risk of...

I would regulate the shop pressure down to 90 psi to avoid over-inflating the tires.

www.dirtlegal.com Significant advantages are had with these guys.

Can confirm. The box makes seemingly simple tasks take on herculean proportions. Basically anything like the hydraulic pump or the LBCD, etc require that you lift the cab, and drop the spare and then pretzel yourself into the spare tire bracket or squat on the rocker cover. It's like owning a...

Not in Bend - I'm in the Portland area. But willing to help if you need. What do you need exactly? I have a lot of resources for these trucks and can work on them as well.

Yeah the disconnect spike is likely their main purpose. The voltage regulator is a rather slow responding device on these units.

The LBCD has another function - the huge caps in it help to smooth the pretty nasty AC ripple that the Niehoff brushless alts put out. When I measured nearly 1.5v of AC ripple I contacted Niehoff and one of their engineers schooled me that for their design up to 2v of AC ripple is considered...

Maybe - it seems they are essentially the same with the N3207 adding the AC output required by the N2003 LBCD. But there's no guarantee that the lack of that input on pin F will still allow the regulator to properly function. It uses a different Amphenol connector to the alternator so that would...

It seems like this is a recurrent problem regardless of MV or not. Trucks be slow under some circumstances. Cars be fast with idiots behind the wheel - till we make every vehicle autonomous there will be collisions between the two. Such is life and risks are part of life. Personally I would...

I drove 2800 miles of almost entirely interstate at 50 and probably pissed off more than a few truckers wanting to go 80 on the flat and level - only to pass them at the same 50 going up the next mountain grade while they are doing 25-35. I would say I am decidedly less of a road hazard than a...

I drove 2800 miles from Houston to Portland at 50 mph and had no issues. I wasn't driving significant number of hours at night.

Excellent advice. Thank you.