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Most of the Allison's had detroit 60s in front of them in the military so the program they always saw had low rpm motors

@fuzzytoaster can give you the correct flash program or maybe trade you a TCM that we have had done for better shift points to maximize the motor. The 3 to 4 gear rpm drop is brutal and it's hard to get the rpms back up. We span the shift point up to 2350rpms so when it goes to 4th gear it's at...

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I put an RTOO-14613 in my 920 along with a 2 speed transfer case. Running 12R24.5 drives and 445 65 22.5 steers it would get up to 79. If it has the 7 spd allison it should be able to get to atleast 70 or 74 all day long

You can add the lots of miles to a 915a1 (180k mi) and a 920(95k miles) as Google is a pretty good stalker. Hockey pucks are rated at 90. Same as the mounts used in racing. You simply remove the metal sleeve from the old mounts drill and install everything with the weight on the pucks. The...

The hockey picks are alot more rigid and take more vibration Snap a picture of your jackshaft since there are prototype trucks from Northrop grumman that are different builds than the common RRAD done

Those 920s with the 7spds weren't all that common. If you move the transfer case back and install a longer jackshaft the vibration goes away It's been done to the 916s lots of times cause they break that little CV joint they use from the transmission to the transfer case...

Don't do that. The Big guy will want his 10%

Great for engine and for cab mounts

I use hockey pucks and drill a hole in them. Get a longer bolt and use them on both top and bottom sides with flat washers as big as the puck

If you use a 24v ac unit then you are fine. They are 140amp units on 24v. If you are using a 12v interior unit and compressor then you are going to have issues. They are only 50amp on the 12v side. The alternator also only puts out at 1100rpms and higher on 12v Running into this issue with...

What do you need to know? I've done several AC installs on 915s to 920s

This is the pump per the part number. It is 3 sections as you can tell. The spacer is the 4th attached to the rear that is put in place. Never trust the whole TM pictures

I only see the 3 stack there. Like on this case. The cooler works as designed on this one I'll look at the stack on the 920 in the morning. It is flowing though cause I removed the rear driveline and watched it pump fluid into a clear container.

Electric gauges are the only ones that will read low enough temperature. Mine bottom out at 70 degrees. Yes the lowest suction port in the transfer case is where you would want to put one. I put one in the transfer case cooler return and in the mid pumpkin plug on the axles. Only my...

I'll bump it. There isn't a screen inside all of them, just certain ones. I've been in 5 different cases in the past month. None of them had the screen. Run synthetic gear oil if possible and put a temperature gauge in that lower plug in the T and be done so you can keep an eye on it...

It's easy to pull the fenders rather than working around all that junk. Fenders come off with just the 8 bolts. Be sure to leave the rear bracket on the inside loose so it's easier to get on and off and the front lower outside bolt on the front tow hooks. Fenders don't weigh much. The handle...

I got an o ring from my local hydraulic store some years back I recall. Like I said, I don't pull the PS pump off. So don't have that issue. I also pull the oil pump side nuts loose if I take it off. Not the pump side. So that adapter stays on

Brad, Make your fenders easy to take off and on. Also makes it nice to have a grab rail for reaching down into the frame area. Using the same handle that is used on the front of the cab would work as well. What I used is off a 916a1 toolbox

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