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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Sep 2009 Posts: 433 'Bolter | | 'Bolter Joined: Sep 2009 Posts: 433 | Does it matter that my new water pump has two threaded holes as opposed to my old water pump having only one threaded hole ? Can I plug the second hole on the new pump and use it ? The bolt pattern and shaft length seems to be the same. 1960 235 Engine going back in a 1954 3100 Truck. New Water PumpOld Water PumpThanks. Michael...
Last edited by healingbear; 06/05/2018 11:57 PM.
1954 Chevy 3104 3 Window Hydra-Matic in my family for over 60 Years
Once in a while you get shown the light in the strangest of places if you look at it right... "Scarlet Begonias" Grateful Dead 1974
| | | | | Joined: Mar 2014 Posts: 4,489 Moderator, Electrical Bay | | Moderator, Electrical Bay Joined: Mar 2014 Posts: 4,489 | I've bought a couple that came with 2 holes. One came with a plug installed but one came with a thread size reducer in the box and both holes open. I don't know what the reducer was for, but I kept it and plugged the second hole.
Jon
~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end
| | | | | Joined: Dec 2016 Posts: 80 'Bolter | | 'Bolter Joined: Dec 2016 Posts: 80 | You can plug off one hole or if your looking to keep it original, find a rebuilder to rebuild the old one holer as I did. Totally depends on the condition of the old one and what you would like to do.
1959 3204 Basic Cab
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