kvduff
Well-Known Member
Dt- you have a good attitude! As I look around for the “right one” issues like these make body parts pucker!
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Dt- you have a good attitude! As I look around for the “right one” issues like these make body parts pucker!
David - I'm still not convinced you have a problem that requires replacement at this time. There are some things I would look further into like:
Have the filters ever been changed or cleaned?
The oil sampling was inconsistent consequently the analysis and indications have no real basis to make decisions.
High Chromium is not evident which if high would indicative of the countershaft tapered roller bearing failing.
All transmissions will create some amount of ferrite particulate; pull the pan off your car and look at the magnet in it; it's covered in particles.
If the countershaft is becoming an issue it will noticeably knocking when in reverse (on the port gear) as it is unloaded or free-wheeling when in reverse. With a stethoscope listen to both transmissions while someone is putting them in forward and reverse. Remember that the port gear in forward would / should sound the same as the starboard gear in reverse...
The larger chunk of carbon steel is curious but in it's self does not indicate really anything other than a chip came off something like a gear tooth which is not uncommon.
As a last thought you might consider scoping the gear with an endoscope and evaluate from there. Also you could sweep the bottom of the case with a magnet through the drain plug to see if there is an abundance of larger carbon steel fragments.
Just my thoughts.
Tom