Tim, the Hvdrovac for the 2 ton trucks is larger diameter (9.5") than the
1-1/2 ton and smaller trucks (6.75") and they have different strokes (the
6.75" have 1.5" & 3.9" and the 9.5" have 4.7" & 6.4")......
Let me know if you need more info.
Mike Boteler
'56 8400 Wrecker
Hughesville, Maryland
----- Original Message -----
From: "Tim Seawolf Self" <tim@route66autoclub.com>
To: <oletrucks@autox.team.net>
Sent: Thursday, June 15, 2000 9:15 PM
Subject: [oletrucks] HYDROVAC
> Hey, Brian
>
> Do you still have the old Hydrovac?
> I need one for a '59 Chevy 2-ton Viking 6000, that mounts under driver
side. Also, a 1 1/2 or 1 3/4 master cylinder.
> The 1 1/4 cylinder bore that is on it now is not working properly.
>
> The only way that I could get the smaller master cylinder to work is by
installing an inline pressure valve.
> http://www.wilwood.com/products/master_cylinders/rpv/rpv.html
> "These in-line pressure valves retain a minimum brake line pressure to
help eliminate excessive pedal travel in both disc and drum brake systems."
>
> First test drive, on the highway, will be tomorrow. They are still a
little on the "pump and pray" side, but it does stop, eventually.
>
> Tim
>
> Date: Wed, 14 Jun 2000 21:46:09 PDT
> From: "Brian _" <pkupman57@hotmail.com>
> Subject: Re: [oletrucks] HYDROVAC
>
> hi,
> i had a hydrovac in my truck, but ive since changed out to a newer (safer)
> duel master cylinder and booster on the firewall.
> now ive got a question,. ive seen a lot of hydrovac boosters mounted in
the
> engine compartment, but mine was mounted under the floor, right behind the
> front tire. is this common? this is obviously the original mounting
location
> for mine, but has anyone else ever seen one mounted there?
> TIA
> Brian M
> Atwater, CA
> '57 Chevy 3200
> '00 Dodge Neon
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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