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Mod | | | Forums66 Topics128,096 Posts1,056,489 Members48,444 | | Most Online14,466
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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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Jun 2004 Posts: 66 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2004 Posts: 66 | I plan on putting a water pump adapter on my '54 1-1/2 ton which will be powered by a '62 235 from a '62 c-10. What is the ideal water pump pulley to harmonic balancer pulley ratio so the water pump isn't spinning too fast or slow? | | | | | Joined: Feb 2005 Posts: 469 Shop Shark | | Shop Shark Joined: Feb 2005 Posts: 469 | You need a balanncer from 54 or earlier that takes the same width belt as your pump. | | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | For the 3/8" belt an acceptable substitution is to use a 1955-62 truck balancer. This balancer is designed for a 1/2" belt but may be used with a 3/8" belt. This will allow the belt to run deeper in the groove and in affect will reduce the diameter to very near the correct size.
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