What are the different types of water pumps for pontiac motors up to 1981?
Actually there was two main pumps for the older ones,, one was called a short shaft,,and one was called a long shaft,,the long shaft was the most popular,and it all depends on whether your car had power steering,,and air conditioning on it,,all the ones that used the long shaft usually had air,,and power steering on them also,,also some of them had a smog pump on them,,this was the main reason they used the long shaft,,most of the smog pumps got taken off and discarded down through the years,,but you still had to use the pump that had the long shaft,,this is the problem your having,,i own a repair shop in Tennessee,,and have been redoing some old cars in the past few years i to have run across the same problem you are having,,you can have a long shaft ordered for you ,,and it will work fine,,i had to use the long shaft on the one i was redoing hope this helps some.
