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Click on image for the lowdown. 
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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: Oct 2006 Posts: 9,671 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 9,671 | The flat side of the cups goes against the pistons. As the
pressure in the cylinder it pushes the open side of the cup,
forcing it out against the cylinder sealing it tighter the
more the pressure is increased.
dg
Denny G
Sandwich, IL
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