Fifty-year-old rubber exposed to heat, cold, vibration and air pollution. Aftermarket replacements are available. Your chances of finding a NOS unit are low. Your chances of finding a good-condition used unit are better, but will require you to rely on the quality of the seller's photos. There are a couple of businesses (Damper Doctor, Winslow Mfg) that will re-core your old unit.

Edited November 19, 2025Nov 19 by Namerow

Good information, appreciate your response. Sounds like I need to replace or re-core my original one

I mailed the balancer to the guys in Reading this AM. $300. Thanks for the tip🙋‍♂️

Post some pictures of the rebuilt damper after you get it back.

I'll post pictures. It takes about two weeks.

My 1971 Z didn't Have rubber Bellows type dust cover boots on the strut rod. The manual doesn't show that the car came with that. But it seems like a really good idea to add those before I reassemble the struts Any thoughts on that idea?

You can get them for a 4-wheeler at your local motorcycle shop. They have those metal bands that work great instead of the e-bay ones that send you zip-ties.

Just got the harmonic balancer Back. Looks really good. Namerow asked for pictures.