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    Cat 7155 tranny

    Did you ever figure out what was going on with the gasket?
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    Simp's M915A1 Build Thread

    These were the instructions on one of the 915's we drove in Iraq!
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    R.I.P.--73M819--Ron Harris

    From reading all the post, I have missed meeting a great man. Prayers for all involved. Wayne
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    Cat 7155 tranny

    Soni had this on a shifter that I got from him. Looks like he made an adapter to shroud the sharp edge of the rectangle shift lever. Gives a little more to pull up on.
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    Artisan's M916

    Like Wes said, I run a 7155 over the road every week, Somewhere over 80,000 mi since July 2016. Haven't had any problems with the air system. I started out with a 2009 Fort Polk overhauled tranny, I did pull the rebuilt valve body off and put on a brand new one out of the crate. I do use a...
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    Artisan's M916

    Sorry to hear about the tires. You could flip them around and as the shoulder wears, the footprint is going to become more rounded and may be more prone to wondering, just my experience. If all tires are same, you could move them to a drive position and rotate forward. If it was me, I would...
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    Simp's Cat 7155 Swap into a M923A1

    Looking real good! Now you need a Jake brake to slow that girl down!
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    Simp's Cat 7155 Swap into a M923A1

    Nothing going on with the governor? Or with the air dryer you installed?
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    Simp's Cat 7155 Swap into a M923A1

    Hey Wes, When you have it running, before you put the yoke on, I would make sure you have oil pressure all the way to the back. My first Fort Polk overhauled transmission wasn't and burnt the bearing up and cracked the rear clutch housing. There is a video at idle here...
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    Simp's Cat 7155 Swap into a M923A1

    Your transmission has a valve body heater on it. There is a guy in France that has a couple brand new surplus heater kits for sale, but I'm guessing you won't need the heater with a good air dryer. Pretty sure that is what the diamond shape sensor is for. The one between the umbilical line and...
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    Simp's Cat 7155 Swap into a M923A1

    I regularly gross 80,000 lbs. I still have the oil cooler lines shut off from the winter. The trans temp runs around 150 F and will get to 200 F when maneuvering or stop and go traffic. The 7155 Operation manual says 270 F is considered high and do not run there frequently or consistently. I'm...
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    Simp's Cat 7155 Swap into a M923A1

    simp5782, I put the 7155 behind a Detroit Series 60 430/470 hp, 1650 torque a year ago now. I have somewhere around 60,000 miles on it with no problems other than last winter when the temp dropped below 20 degrees, I believe the rear clutch would slip a little near peak torque in top gear. I...
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    Artisan's M916

    Glad you had a good trip! As a owner-operator, over the road trucker and self taught mechanic / repairman, I do my own alignments these days after many tires and years of getting bad alignments! I would say you have a tow-in issue. Driving the 916 in the military, I would think it hard to bend...
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