Okay folks, does anyone know the info on these? Were they installed only on supercabs or others as well? Just wanting to get educated on them. Thanks y'all.

 

https://www.ford-trucks.com/forums/1...-dampener.html

 

That is interesting for sure. Thank you for the information.

 

I purchased one of these and the drawing was released in March of 1974. There must have been information from Ford prior to the 1979 model mentioned in the bulletin above. Any ideas? Thanks

 

So my truck had a vibration going up and down around 40-45 mph. My driveline is in good condition. So I installed the factory damper and now the vibration is gone! I would not have guessed that would fix it but the engineers got it right.

 

I have never seen one in a reg or super cab. I never knew about them until you brought it up a while back.