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| | | Forums66 Topics128,049 Posts1,055,743 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!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Jun 2004 Posts: 66 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2004 Posts: 66 | I'm going to plumb a line from the intake manifold on my 235 to handle the 2-speed rear and the future power brake booster(hydrovac?) What size line do I need? The vacuum wipers will be handled by the fuel/vacuum pump. I will run a flexible line between the engine and the cab. | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | It's been a long time but it seems like they used 1/2 hose for that. 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: Jun 2004 Posts: 66 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2004 Posts: 66 | I own a '54 4100 and I wanted to know where can you get that 1/2" steel vacuum line that goes from the intake manifold to the hydravac and 2-speed rear end. I can only find 3/8" or smaller line. Thanks in advance.
| | | | | Joined: Jan 2008 Posts: 4,961 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,961 | Plastic or "Synflex" air brake hose would probably work. I is available at any truck parts house that carries stuff for air brakes. | | | | | Joined: May 2009 Posts: 117 Shop Shark | | Shop Shark Joined: May 2009 Posts: 117 | stoveboltkid, i duno if this helps but i made my own. if you go to any parts store and find the right fittings to screw into the intake and hydravac you can simply slide 3/8 fuel line on it clamp it and off ya go
Last edited by Alex an Mader; 05/13/2009 2:37 AM.
| | | | | Joined: Jun 2004 Posts: 66 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2004 Posts: 66 | Also I've seen check valves on each line after it exits the intake manifold. What kind do i need? | | | | | Joined: May 2009 Posts: 117 Shop Shark | | Shop Shark Joined: May 2009 Posts: 117 | those are on newer model trucks arent they ? like the ones on the brake booster? if it is i duno the part number off hand but ill get you the # tomarrow
Last edited by Alex an Mader; 05/13/2009 4:46 AM.
| | | | | Joined: May 2009 Posts: 117 Shop Shark | | Shop Shark Joined: May 2009 Posts: 117 | Plastic or "Synflex" air brake hose would probably work. I is available at any truck parts house that carries stuff for air brakes. i also like this idea... with a heat gun you could "mold" the line to take any shape to contour and be out of the way for a custom look, im gonna have to experiment, thanks for the idea crenwelge!!!
Last edited by Alex an Mader; 05/13/2009 4:53 AM.
| | | | | Joined: May 2009 Posts: 117 Shop Shark | | Shop Shark Joined: May 2009 Posts: 117 | stoveboltkid, i got the checkvalve part number you were talking about, Advance part number (sku) 80190 Power brake booster check valve | | |
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