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Click on image for the lowdown. 
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| | | Forums66 Topics128,020 Posts1,055,345 Members48,419 | | 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!
| | THANKS!
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: Feb 2006 Posts: 7 New Guy | | New Guy Joined: Feb 2006 Posts: 7 | what site can i link up to that will give me information on part numbers , i have some nos engine pullys and i want to see what they fit , anyone with any help , thanks | | | | | Joined: Nov 2005 Posts: 6,100 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 6,100 | Hy gmcdeadhead, just so you know casting numbers are not necessarily the same as part numbers. I'm not a computer guy, but there might be a website somewhere that gives you access to parts book information, or you could post your numbers here and see if we can help you out. | | | | | Joined: Feb 2006 Posts: 7 New Guy | | New Guy Joined: Feb 2006 Posts: 7 | the part numbers , ( not the casting numbers) are 3755820bs, and 3751232bb. on alot of gm parts they put the part number . | | | | | Joined: Nov 2005 Posts: 6,100 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 6,100 | Hy gmcdeadhead,3751232 crankshaft pulley 67-68 40 series w/Hd cooling or air cond. exc ps 1-3/4 high 10 holes front single groove 6 3/4 od. I couldn't find 3755820 in my books so far, hope that helps. | | |
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