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Discussion Starter #1
Just finished the brake work and truck stops great now. Came home last night and noticed some engine vibration just off idle around 1k rpms when in neutral. Feels like a harmonic balancer going bad in a gas motor. Any ideas?

More info

-Truck is warmed up
-Rpms 900-1100
-When at a stop in neutral
-Just touching pedal maybe around 5 % throttle
 

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Discussion Starter #3
Manual

Same with clutch in or out as well

Going to go check if vibration is there when cold
 

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Original clutch/flywheel? Does it make an extra rattle/thunk noise when you shut down the engine?

If it's not too friggin cold where you are, slide under the truck, remove the flywheel inspection plate, and attempt to turn the flywheel. If it turns several degrees just by hand, then the dual-mass flywheel is starting to let go.
 

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Discussion Starter #5
Clutch and flywheel are oem and have 30k on them. No clunk/chatter noise when shutting down. I notice it less when engine is cold then vibrates worse when engine is warmed up. Notice no difference at with clutch in or out. Ok so try and turn the ring gear and see if it moves a bit????
 
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