drive shaft with balancer

[incom5633]

hi,
 i have a  feb. 69 camaro coupe 307- 350th. which i bought new. the drive shaft has a metal balancer ring similar to a harmonic balancer mounted on the transmission end of the yoke which is offset to the rear yoke. i have never seen another one nor can anyone tell me its purpose . was this used for special problems associated with vibrations ? please give me as much info as possible.

thanks

[rich69rs]

This has come up before and as I recall there are a few, liike yours, documented examples.  I searched but couldn't find the previous posts.

However, you may find these somewhat interesting as they are related.

Richard

http://www.camaros.org/forum/index.php?topic=914.0

http://www.camaros.org/forum/index.php?topic=980.0

http://www.camaros.org/forum/index.php?topic=4623.0

http://www.camaros.org/forum/index.php?topic=4425.0

[9T4Z]

Picture please?  We used to attach 'hose clamps' to drive shafts to obtain balance. The weight of the screw assembly with a couple of clamps was often enough.....

[incom5633]

thanks guys, if any other documentation surfaces please forward.