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Click on image for the lowdown. 
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| | | Forums66 Topics128,054 Posts1,055,782 Members48,426 | | 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: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | The "pouches" under the seat are actually releif valves. When you sit in the seat, there's some air displacement (or alot of air displacement if you're pushing the 300# mark like I am!), and those valves allow for a controlled escape of the air. If you sit on the seat, you'll hear them blow out.
Bill Burmeister
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