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Click on image for the lowdown. 
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| | | Forums66 Topics128,212 Posts1,057,468 Members48,471 | | 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: May 2004 Posts: 67 'Bolter | | 'Bolter Joined: May 2004 Posts: 67 | Just purchased a 1958 3800 series truck which has a vac. brake booster located on top of the frame near the fuel pump. My question is: Is this a stock item or a add on option? Also, will I be able to find parts for a rebuold? Truck is not running at the moment. The truck has a 235 engine in it a the moment. | | | | | Joined: Aug 2006 Posts: 486 'Bolter | | 'Bolter Joined: Aug 2006 Posts: 486 | I think you have a hydravac. I believe it was an option on 1 ton trucks. My '57 has one. You can see it in the lower right corner of this photo. http://i305.photobucket.com/albums/nn214/jfnar/57%20chevy%203800/7f5847c2.jpgIf you search hydravac you should find some info.
Last edited by jfnar; 08/23/2010 8:51 PM.
'64 swb stepside (gone)
'57 1 ton
'53 phone truck
'59 swb
'46 1 1/2 ton
'68 swb gmc
| | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | You also should check out the "Tons o' fun" forum. It is 1-ton specific. | | | | | Joined: Jan 2007 Posts: 161 Shop Shark | | Shop Shark Joined: Jan 2007 Posts: 161 | | | | | | Joined: May 2004 Posts: 67 'Bolter | | 'Bolter Joined: May 2004 Posts: 67 | | | |
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