[asphaltgambler]

This is an interesting question. I remember back in the late 70's early 80's those components failed all the time, so much so a local company (in Northern Va)built a huge business re-maning w/emphisis on quality. Not just re-man but re-engineered. They grew quickly and had a great reputation.

But as engineering/manufacturing technology improved, so did the life span of all the veh parts and accessories. They started to expanding their business into cooling systems and other areas until that market just dried up. Then the Chinese parts started to roll in along w/ warehouse do-it-yo-self parts stores = death. Guess where they are now??