New member here. many years a lurker.
The 4wd gearshift has high frequency vibration with engine RPM when driving in 2wd . The shifter vibrates with the clutch engaged AND when disengaged while driving, vibration will increase with rpm increase.
The 4WD shifter does not vibrate when engaged in 4WD lo and high. The main transmission shifter does not vibrate under any conditions.
I turned the front drive shaft 180 degrees and that seemed to help a little bit. The U-joints are good upon inspection. The gear fluid is correct, the motor / transmission mounts seem ok too.
The wheels and tires are new and balanced. The engine and tranny are both recently rebuilt (by me) I did not open the transfer case when rebuilding the trans. I am competent with wrenches.
What could cause this nuisance vibration only through the 4WD shifter lever and only when disengaged (only when driving in 2WD)?
The vibration can't really be felt anywhere else (unless you're aware of it and are 'looking' for it in the gas pedal and cab bodywork / frame.
Bookmarks