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*highperf4x4* · 10-09-2009, 12:29 AM

It sounds to me like a problem with the harmonic balancer/damper.

Did you use the stock balancer on this truck? They are 2 piece with a rubber cushion between them. I'd check that first.

A broken flywheel will usually make a knocking sound so I'd be surprised if it was that? It could be an issue with the torque converter though.

Your machinist did balance this engine right?

10-09-2009, 12:29 AM	#9
highperf4x4 Account Suspended Join Date: Apr 2009 Location: Oklahoma City Posts: 4,709	Re: vibration.........from where????? It sounds to me like a problem with the harmonic balancer/damper. Did you use the stock balancer on this truck? They are 2 piece with a rubber cushion between them. I'd check that first. A broken flywheel will usually make a knocking sound so I'd be surprised if it was that? It could be an issue with the torque converter though. Your machinist did balance this engine right? Last edited by highperf4x4; 10-09-2009 at 12:30 AM.