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Click on image for the lowdown. 
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| | | Forums66 Topics128,057 Posts1,055,810 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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| | | | Joined: Jul 2004 Posts: 5,708 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 5,708 | Your distributor should have a vacuum advance unit. You can buy these separately by application. I think the truck item has a different physical layout than the car one. I understand that the vacuum advance unit is primarily a fuel economy device.
Stuart | | |
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