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Click on image for the lowdown. 
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| | | Forums66 Topics128,077 Posts1,056,014 Members48,433 | | 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: Dec 2003 Posts: 2,733 Shop Shark | | Shop Shark Joined: Dec 2003 Posts: 2,733 | All of the old underbody hoists I've had apart were a simple recirculating system and had no relief valve or a need for one. Are you sure that is what it is? I'm thinking check valve. | | |
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