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Click on image for the lowdown. 
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| | | Forums66 Topics128,164 Posts1,056,965 Members48,458 | | 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!
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#48296 07/28/2005 2:47 AM | Joined: Jun 2005 Posts: 221 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2005 Posts: 221 | it really doesnt matter Thermal clutch or Viscous clutch just 2 different ways of achieving the same end result.I installed an electric fan on my 80 4x4 with 250 six banger it works great and freed up about 10 horsepower i can use for something else. | | |
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