5.9I vibration damper

[JRS82]

Have an 06 5.9 im replacing alternator ,water pump, belt tensioner , idler, belt, fan clutch, bearing in fan clutch hub, my question is should i replace vibration damper it is stock it didn’t appear to wobble and the alignment marks maybe have a very slight difference but not a 1/16 of an inch out of alignment the truck is stock ,it is 4x4 mega cab 48r auto transmission , i found a new one for a reasonable price but the mfg. says it only weighs 7lbs and the oem Is 14lbs wondering what affects this would have TIA for any help

 

[Mike Wenrich]

You might add the mileage on the truck. Also if no response here try the TDR Forum. Turbo Diesel Register. Lots of people with this vintage truck. I have 155K on mine and no issue as far as I know. Unless it's causing an issue you might leave it alone but they are known to have problems. I read that the seal that laminates the pieces dries out and that causes it to "wander'. Sure would not want it to come loose.