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Mod | | | Forums66 Topics128,055 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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| | | | Joined: Sep 2007 Posts: 24 Apprentice | | Apprentice Joined: Sep 2007 Posts: 24 | Did the 235 in 55 have a vacuum advance? I can locate a distributor (mechanical advance) but none have the advance on them. Do I need to buy the mechanical advance distr. and purchase the vacuum advance seperately? Would the engine run ok with just the mechanical advance? thanks | | | | | 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 | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | The vacuum unit on this is attached to the clamp that holds the dist & bolts to the engine. Evidently this is all missing.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Sep 2007 Posts: 24 Apprentice | | Apprentice Joined: Sep 2007 Posts: 24 | Where does a person buy one of these vacuum units? | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | Most of the parts vendors listed in the Links section of Stovebolt.com (this site) sell the vacuum advance unit. | | | | | Joined: Sep 2007 Posts: 24 Apprentice | | Apprentice Joined: Sep 2007 Posts: 24 | I found the vacuum advance unit but I need another piece that connects the diaphragm to the distributor. Where suggestions on where I should start looking? Thanks | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | Put an ad in parts wanted section. I,m shure some fellow bolters have one laying around they will send you.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | |
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