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I am hoping someone out there can help. I have a M920, the truck has less than 500 miles on it. I am having trouble with the engine retarder or "Jake Brake". Where or what do I need to check first? Thanks

Hi Everyone, We just got our 1985 M923. The front wheel assist is not working. We can hear the air valve working but it does not lock in the front axle. Any idea of what to start with first? Thanks for your help, Glenn and Judy

Hi Everyone, We are working on our M818. The front axle was leaking oill. We pulled the wheel and saw the seal in the hub but our first question is - Is there a seal in the knuckle? Also we would like to know if you need to pull the wheel to adjust the brakes. Help! Thanks for all your help...

We are having problems with our CAT 7155 transmission and are thinking about swapping it out. What auto transmission will fit?

Hi, I just got my M920 home and am having some trouble with the CAT 7155 tranny. She will not shift into gear until at least 110lbs pressure and sometimes she just will not shift into gear no matter how much pressure. Geting into reverse seems the most difficult. Any advice? I'm hoping ya'll can...