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#3
02-20-2014, 03:06 AM
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Re: 1969 pontiac judge
69 Pontiacs used at least two different water pumps. One had a hub height of 4 15/32, the other had a hub height of 3 31/32. No doubt there was a different set of pulleys depending on which pump was used. It's been a long time since I bought my 69 428 Catalina (mid 69), but I believe the reason for the change was because Pontiac improved the water pump with a larger bearing and changed the overall height at the same time.
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...................... John Brown This isn't rocket surgery..... 
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