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Click on image for the lowdown. 
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| | | Forums66 Topics128,168 Posts1,057,025 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!
| | | | Joined: Oct 2006 Posts: 9,671 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 9,671 | Circumference Big, the larger the circumference the better defined or higher the resolution of the scale. On the 2” face it is very difficult to read closer than a couple hundred rpm, bump that up to a 3”or 4” face and now you can accurately read with in 50 rpm. I suppose the easiest way to explain what I mean is with a picture. Try this: http://rides.webshots.com/photo/2513482700098611668dGaxvt Which one would you rather try to read while bouncing around at 55mph? Denny Graham Sandwich, IL
Denny G
Sandwich, IL
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