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External balance. Includes fan spacer.
Bore Diameter: 1.738"
Degree Marking Range: 1 timing mark
Degree Markings: Engraved
Engine Balance: External
Finish: Black Zinc
Keyway: Single
Length: 3.920"
Material: Steel
Mounting Hardware Included: No. Fan spacer included.
Outside Diameter: 8"
Safety Rating: SFI 18.1
Weight / Rotating Weight: 22.5 lbs / 15.0 lbs

External balance. Includes fan spacer.
Bore Diameter: 1.738"
Degree Marking Range: 1 timing mark
Degree Markings: Engraved
Engine Balance: External
Finish: Black Zinc
Keyway: Single
Length: 3.920"
Material: Steel
Mounting Hardware Included: No. Fan spacer included.
Outside Diameter: 8"
Safety Rating: SFI 18.1
Weight / Rotating Weight: 22.5 lbs / 15.0 lbs
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4.5/5 Stars out of 2 Reviews
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Jack Schaal (Fountain) | March 20th, 2022
So I bought this in an attempt to get rid of a motor vibration in my 95 F350 7.3L w/ZF5. I no longer have the dual mass flywheel which in turn put the motor out of balance as the 7.3 os externally balanced. Before install I had a noticeable vibration at about 2500 rpm. While this harmonic balancer did not take out that vibration completely I did notice that the ENTIRE rpm range Smoothed out. I would buy it again as I suspect it would add to life expectancy of the engine aiding it in being balanced especially with manual transmission trucks.
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