I am in need of a two groove water pump pulley. What did they come on? Where should I look?

D

Agreed!

In my experience, early 70's (at least through 74, maybe through 76) fan belts and related pulley's have a different belt spacing than the small block stuff in the mid 80's. I grabbed a water pump pulley from the salvage yard this spring with out checking thinking it would fit my 3 groove crank pulley. NOPE! That 3 groove pulley was advertised as fitting 74-77.

Lucked out and the yard had a 74 D600 with a two groove pulley that worked. I also found I have a pulley off a 72 360 that had the correct spacing, but It came out of a 62 D500 long ago, and I have no idea if the pulley belonged to the 62 or 72 water pump...

My slant powered 75 and 76 Darts and 76 Aspen had 2-grooves to run the air conditioning. Don't know much more than that.

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"Louise", a 1976 Dart Custom project, (now sadly reverted to being just an "organ donor" to our other project Darts.)