If the damper on your performance diesel looks like this:

It's important for the damper on your diesel engine to function properly . If your damper looks like this, you need to replace it before major damage occurs. Stock elastomeric dampers have a short life span and do not control torsional vibrations at all RPM's. The rubber rings in stock dampers deteriorate.
Fluidampr offers a superior performance that lasts.  

You need one of these:

A new Fluidampr on your diesel truck will not only protect your engine from destructive torsional vibrations but will also increase TORQUE & HORSEPOWER. High performance diesel engines running chips and programmers are exceptionally vulnerable to torsional vibrations. Save your crank & more by installing a new Fluidampr today.

	870201 Ford PowerStroke 6.0L 2004 & up $435.70
	720211 Fluidampr Performance Diesel Series Damper Ford PowerStroke 1998-2003 $435.70
	720221 Fluidampr Performance Diesel Series Damper Ford PowerStroke 1994-97 $471.40
	870211 Fluidampr Performance Diesel Series Damper Ford PowerStroke 6.0L Diesel w/dual alternator Pulley $613.15