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Labor Day Putting down your wrenches or time for
MORE wrenching? 
Plenty of places to share. | | Click on image for the lowdown. 
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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: Sep 2011 Posts: 1,451 'Bolter | | 'Bolter Joined: Sep 2011 Posts: 1,451 | You should only get a brief suction on the breather during brake apply, if it suck with out fluid pressure from master cylinder the Hydro -vac unit has in internal issue.
You could use a cfrankcase breather filter (kind that pops in vaalve cover grommet) from your FLAPs, might be a day or 2 before I located the one I've got rat holed.
BC
1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc
1949 GMC 250 project in waiting
1960 C60 pasture art
Retired GM dealer tech. 1980 - 2022
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