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BUSY BOLTERS Are you one?  The Shop Area
continues to pull in the most views on the Stovebolt. In August alone there were over 22,000 views in those 13 forums.
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Jul 21st, 2025 | | | | Joined: Apr 2015 Posts: 5 'Bolter | | 'Bolter Joined: Apr 2015 Posts: 5 | I am new to this forum. I am trying to get my 46 chevy 3/4 ton pickup running. The water pump is shot and I would like to get a replacement. My harmonic balancer pulley has a 3/8 groove, and the the generator pulley is also 3/8. The water pump has a 5/8 pulley. All of the replacement water pumps I see online have 5/8 pulley. Can I run this setup with a 3/8 belt? Can I get a 3/8 pulley on a water pump that will fit this engine? I really do not want to change the harmonic balancer. Thanks for your expertise. | | | | | Joined: Sep 2010 Posts: 1,576 back yard wrench turner | | back yard wrench turner Joined: Sep 2010 Posts: 1,576 | Welcome to the stovebolt.
I had the same issue. The replacement pump was the wrong size. I changed the pulley from the old water pump to the new one.
Last edited by Wayne67vert; 05/16/2015 11:38 AM.
Wayne1938 1-Ton Farm Truck-30- Stovebolt Gallery ForumsWhen I die, I hope she doesn't sell everything for what I told her I paid for it! | | | | | Joined: Jan 2001 Posts: 5,320 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,320 | If you order a 1953-54 pump it should come with a 3/8" pulley.
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Apr 2015 Posts: 5 'Bolter | | 'Bolter Joined: Apr 2015 Posts: 5 | | | |
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