M920 cat 7155 transmission

[ROARKY]

Looking at a m920. Current owner says he bought two, this one has burnt smell from fluid. Slips when pulling a hill really bad. He bought another “good” cat 7155 transmission but hasn’t installed it. I have access to lots of heavy tools, lifting equipment and guidance professionals (aka buddies). I have read up on several threads and understand many of the quirks of this transmission. My question is, when replacing this transmission are there any special tools or procedures that I need to be aware of? I was told that it is about 12 hours worth of labor. Just want to make sure before I decide to go any further.
Thanks!

 

[NDT]

Just know that it is heavy AF.

 

[simp5782]

Looking at a m920. Current owner says he bought two, this one has burnt smell from fluid. Slips when pulling a hill really bad. He bought another “good” cat 7155 transmission but hasn’t installed it. I have access to lots of heavy tools, lifting equipment and guidance professionals (aka buddies). I have read up on several threads and understand many of the quirks of this transmission. My question is, when replacing this transmission are there any special tools or procedures that I need to be aware of? I was told that it is about 12 hours worth of labor. Just want to make sure before I decide to go any further.
Thanks!

This must be the one in south central KY. No special tools needed. They are heavy compared to other transmissions. About 1500lbs.

That truck isn't worth what he's asking for it since he's trying to pass it off as a peterbilt

 

[ROARKY]

This must be the one in south central KY. No special tools needed. They are heavy compared to other transmissions. About 1500lbs.

That truck isn't worth what he's asking for it since he's trying to pass it off as a peterbilt

Yep that’s be it. What do you think would be highest to offer?

 

[simp5782]

Yep that’s be it. What do you think would be highest to offer?

Maybe 5k. It's not pretty missing tires wheels winch most pto stuff. I wouldn't do more than 4k

 

[NDT]

Yep that’s be it. What do you think would be highest to offer?

How many years was it used and abused as a pulpwood truck?

 

[ROARKY]

All good questions. I will see if I can find out some more info before I go look at it. I am looking at a 915 as well. End goal is to build a camper conversion/toy hauler that will haul around my projects every now and then. I like the m920 but don’t want to end up with a turd either.

 

[simp5782]

All good questions. I will see if I can find out some more info before I go look at it. I am looking at a 915 as well. End goal is to build a camper conversion/toy hauler that will haul around my projects every now and then. I like the m920 but don’t want to end up with a turd either.

You can put a 10spd or regular 13 speed in it and just go with 1600R20 tires and it will run 75 or 77.

you woud need an RTOO14613 or an Allison 4500 to have any road speed on 395s or smaller tires.

 

[NDT]

Never forget you throw 50 cents out the window every mile for fuel with these.

 

[ROARKY]

Never forget you throw 50 cents out the window every mile for fuel with these.

Yeah that’s what I heard. It will see maybe 3000 miles per year, I doubt it though.