Vacuum to Hydro boost brakes

[hydroshok]

Finished, but missing the motor so you get a better view of it. The first post also has some...

[Billy Bones]

Man I'm stoked to do this to my rig! Does anyone know if there is a bolt on or fab on P/S pump with no Vacuum? I'd really like to run one that is just a P/S pump

[hydroshok]

Some things will stop working with no vacuum. I'm not sure because I don't have cruise control, but that probably uses vacuum. I know the hvac system uses it.

I have not seen just a p/s pump, but the big trucks have compressors on their p/s pumps. Good luck getting it to fit though.

[Gots_a_sol]

This guy used a pump straight off the timing cover. I have yet to find one for sale that wasn't ridiculously priced though. He said he was going to use an electric vacuum pump for vacuum duty. Superduties run that way from the factory fyi.

http://www.dieseltruckresource.com/dev/ ... ost2582890


Here is mine with the GM setup.



I had the return lines T'd originally, I have since put a 2nd gen pump on that has 2 return ports, so no more T.

[Mark Nixon]

3rd gen Dodges also use an external electric vacuum pump.
I am unsure if it actually has the capacity to run the cruise control unit on a 1st or pre-2001 2nd gen.

A bit off topic, but the '01-up 2nd gen and later stuff use the TPS to run the cruise.

Mark.