Hi all. I have just sold a 1997 Ford F-800, that has a MT643 transmission in it. The engine is a Cummins 8.3. This vehicle drives very well with 105,000 miles. We changed the transmission fluid and filter last month, using the recommended synthetic fluid. We are hearing a very faint noise only when it down shifts from 3rd to second. Other than that, it works perfectly. I have driven in a number of units over the years, and find them to have some noise. This is very hard even to hear on the first try. Of course my customer wants me to rebuild the tranny!
Do you think that is a serious problem? I don't. If it ain't broke, don't fix it.
Comments from someone that is in the transmissin service game would be appriciated.
Jamie
Do you think that is a serious problem? I don't. If it ain't broke, don't fix it.
Comments from someone that is in the transmissin service game would be appriciated.
Jamie