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Click on image for the lowdown. 
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| | | Forums66 Topics128,127 Posts1,056,681 Members48,452 | | 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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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Apr 2005 Posts: 1,107 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 1,107 | put your foot on the brake pedal then start truck. if brake pedal drops slightly then most likely its working. disconnect the steel vacuum line from the unit(line coming from engine) if you get brake fluid running out then some of the seals are leaking and the unit is on borrowed time. if you havent post a pic of the unit. | | |
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