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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: Jun 2016 Posts: 338 'Bolter | | 'Bolter Joined: Jun 2016 Posts: 338 | What is the difference between the Hydrovac unit on my 1952 6400 and a brake booster? Rebuilt Hydrovac units seem to be around $500, but a new master cylinder and a brake booster would appear to be cheaper. Either way, how do I check the Hydrovac to see that it is working properly? Brakes is my next project, probably starting in the next few weeks.
Also, the Hydrovac seems to run off the same vacuum source as the wipers, is this a problem? would it help to use a dual-action fuel pump so both can work well? Maybe add a vacuum canister like a modern vehicle?
1954 Chevy custom 261CID, T-5 5 Speed.
1952 Chevy 6400 2 ton hydraulic flat bed.
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