Changing from hyroboost

[SirRobyn0]

Couldn’t tell you past the cam part(or diesel). I believe, for the most part I’d rather a slight fluid weep to a vacuum leak, though neither are desirable. Most heavier duty trucks I’ve come across have hydro assisted brakes vs vac assisted brakes, I guess there’s something to be said for that.

While I can tell you that my SquareBody stops really well for a truck of its era—in fact violently so if I mash the brakes; I would defer to your expertise on the matter due to your background as a mechanic. Whereas my background is shade tree and forum based at best.

The vac system on my truck, and it stops really, really well even loaded and for that matter over loaded. To be honestly much better than my Dodge truck does. I know that hydro boost went on the diesels for the obvious reasons, and vans especially the astro van for space saving. I know how to repair both systems, but never really saw an advantage to one over the other in a regular gas rig at least.

Hydro has more power than vacc assisted. Also has an accumulator so if the engine stalls you get a couple of assisted stops before the pedal starts to feel like trying to crush a garbage can with your foot. I guess a big enough vacuum reservoir will do that for you too.

In my experience, both systems are reliable enough that that's not a decider for either one. My opinion is that the juice brakes have a minor advantage. If I was going to swap a system I'd go vacc to hydro, but not the other way around.

Yea, the check valve on the vacuum booster is suppose to give you a few assisted stops or pumps before assist runs out.

Imho, both systems work well. They both have their advantages too. Personally, I prefer the pedal feel of a hydro boost system.

I didn't use to like the feel of the hydro system until I owned one, now I really don't care they are both fine but feel different.

900 psi for vacuum brakes, 2400 psi for hydroboost. Makes a big difference when running oversized tires.

Had not thought about over sized tires.

 

[custodian]

What's your location?

Catawba, NC

 

[custodian]

900 psi for vacuum brakes, 2400 psi for hydroboost. Makes a big difference when running oversized tires.

Not running oversize tires. Building this truck for my youngest granddaughter.

 

[custodian]

Building a stock 350 to replace the diesel with a 700r4. Vacuum brakes will suit me just fine. A 16 year girl will be driving this truck.

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[Blue Ox]

Sounds like you already had your mind made up.

BTW, the pedal is different too.

 

[Mr Clean]

If you haven't sold it yet, I'd be interested in just the booster, don't need the master cylinder

 

[custodian]

If you haven't sold it yet, I'd be interested in just the booster, don't need the master cylinder

I still have it. Would you need the mounting bracket? Make a fair offer plus shipping or come and get it.

 

[Vbb199]

I'm in Salisbury NC. If Mr clean don't want it. I'm not very far from you at all.

Would like to run hydro boost on my k5 to stop the 53s.

 

[custodian]

Sounds good. I haven't heard from Mr Clean yet. Will give him first shot at it.

 

[Vbb199]

Sounds good. I haven't heard from Mr Clean yet. Will give him first shot at it.

No worries. I'm not in any major rush.
Brakes will be the absolute last thing I do probably to my k5.

 

[Mr Clean]

No worries. I'm not in any major rush.
Brakes will be the absolute last thing I do probably to my k5.

No brother if you need it, it's yours. I was just going to get it to have a extra one.

 

[Vbb199]

No brother if you need it, it's yours. I was just going to get it to have a extra one.

Are you SURE? ?

 

[Mr Clean]

Are you SURE? ?

Yes sir I'm sure. If you need it, or want it.... work out the details with custodian....like I said it was just going to be a spare.

Just in case you want to rebuild it, I get my complete rebuild kits from Pirate Jacks.com, 35.00 and free shipping. Kit comes with all the seals, O rings, everything you need to do a complete rebuild, and really good instructions....

 

[Vbb199]

Yes sir I'm sure. If you need it, or want it.... work out the details with custodian....like I said it was just going to be a spare.

Just in case you want to rebuild it, I get my complete rebuild kits from Pirate Jacks.com, 35.00 and free shipping. Kit comes with all the seals, O rings, everything you need to do a complete rebuild, and really good instructions....

Alrighty!!! Thanks for the info friend!

@custodian ...

Let's talk MUNEY

 

[custodian]

Make a fair offer. As far as I know it was a working unit when parked over 10 years ago. I was able to push brake fluid out of the master cylinder before I remove it.

Will trade for other square parts that I may need.