Quote:
Originally Posted by canadians14sr20det
So I tested this with the driveshaft disconnected, no change at all. It is entirely related to the mass of the transmission and the way the trans case carries the vibration to the chassis. Weight of oil will help gear chatter related to switching to a single mass flywheel, but won't change the fact this trans does this in neutral as well. Resonance is a function of the natural frequency and mass of the object, in this case there isn't much you can do to the trans to change it.
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Thanks for your clarity.
I thought you were revving the car to 4500 and beyond... Just thinking oil should help it a bit and I do like the idea of trying different mounts, maybe with lower durometer like driftfreaq mounts.