Hydroboost Setup with 6bt

[Iceman0502]

Everyone is doing it and knows to get there setup from Elliot.

- But what hoses are you using? Stock chevy dually or custom braided?
- Is the thread pattern on the dodge 6bt power steering pump the same as the Jeep/ chevy hoses.
- Use the stock proportion valve with front disc and rear drum setup?
- What master cylinder - pre 1980 jeep or stock astro?

I have read through elliots thread, an theres so much information.
Can a complete swap be accomplished by buying his hydroboost on ebay and then going to rock auto and buying new hoses from a 1989 chevy K300 (pump to hydroboost and hydroboost to gear), master cyclinder from a pre 1980 jeep (or astro).
Seems to me like a $500 investment (not complaining)

[poolmike]

Most of it will be custom. Many different ways to complete it. You can purchase an adjustable prop. valve, or use the stock valve with stock power master cylinder. If you convert to 4 wheel disc, you will need a 4 wheel disc master.

I had to rotate my booster so the accumulator didn't interfere with the engine. It is a tight fit with the 6bt.

[ross80truck]

Not there yet on my build, but these are all questions I am going to have to answer eventually as well. So, good question!

[tndonor]

I too had to rotate the setup like poolmike. I had my hoses made locally as the length was different. Also, just because it is long enough on paper doesnt mean it will rotate enough to be connected. By the time I figured out what shipping would be and still not be 100% certain it would fit, the difference monitarily was negligible. The peace of mind knowing it would fit was well worth the few extra dollars...... and supporting a local business.

[Resbum]

I too had to rotate the setup like poolmike. I had my hoses made locally as the length was different. Also, just because it is long enough on paper doesnt mean it will rotate enough to be connected. By the time I figured out what shipping would be and still not be 100% certain it would fit, the difference monitarily was negligible. The peace of mind knowing it would fit was well worth the few extra dollars...... and supporting a local business.

I don't know if I need to rotate my setup yet, but X2's on everything else he said. And the hoses don't necassarily need to be the braided.

[Swampfox89]

I got my hydro unit and master from a mid 90's "Super Duty". Just found something that had disc front and back to match my truck. The 6BT that I used had an air compressor and a strait hydraulic pump on it with a remote tank. I rotated the hydro unit on the master to clear the engine, the brake lines are close to the p-pump. Doesn't matter if you have a ve pump. Ha the lines custom made at a local shop. Was all pretty strait forward.

[poolmike]

With the above set up, there is no fuel shut off solenoid. There would be interference with the brake lines for sure. Chevy M/C's get plumbed on the opposite side.

[lobie]

http://www.discounthydraulichose.com/

[Resbum]

http://www.discounthydraulichose.com/

Excellent website. Thanks for sharing. Just added it to my desktop.

This thread has some good info. I'm almost done painting my cab. Once I mount it I'm going to need this info.

[ross80truck]

Does anyone have a hose routing diagram? Needs to include hydroboost, power steering pump, oil cooler, steering gearbox and optional steering assist cylinder and optional filter.

[lobie]

Excellent website. Thanks for sharing. Just added it to my desktop.

This thread has some good info. I'm almost done painting my cab. Once I mount it I'm going to need this info.

I used the "field" fittings. They are reusable and you can do them yourself.

http://www.discounthydraulichose.com/SAE_100R5_Reusable_Hose_Fittings_s/107.htm

[lobie]

Does anyone have a hose routing diagram? Needs to include hydroboost, power steering pump, oil cooler, steering gearbox and optional steering assist cylinder and optional filter.

Don't have a diagram but this is the route:
PS pressure to hydro boost
Hydro boost to gear box (hydro return to tank)
Gear box to cooler
Cooler to filter
Filter to tank
Tank to PS inlet (unless tank is attached to pump)

For the hydro assist, both lines run to an from the gear box. Not sure which but you could look at a gear box flow diagram.

That's how I ran my setup. I tapped the gear box for future use and put plugs in the holes. I tapped it when I rebuilt the box. Some do it when its together but I don't see how they get all the shavings out. I guess blow them out???

[Resbum]

Does anyone have a hose routing diagram? Needs to include hydroboost, power steering pump, oil cooler, steering gearbox and optional steering assist cylinder and optional filter.

This is a really low quality picture I just found buried in a folder, in the "Jeep build notes" section of my computer. Hope you can view it. If I remember correctly it's a GM diagram.

[loosewrenchcowboy]

why?

Ok so i gotta ask-why in the world does everybody doing a cummins swap switch to hydroboost? Dodge cummins trucks 1989-1998 all used vaccumm assist brakes. 1999 and up i have no idea. Heck if it works for a crew cab 4x4 dually.....? Unless ur running rockwell 2 1/2 ton axles and 44 inch tires, or swapped on huge 4 wheel discs, i'm clueless why you'd spend another $1,000 to stop ur jeep. I've heard complaints about the stock jeep stuff being weak, but after replacing my rubber brake lines with braided stainless, & running the stock brakes and master, with the factory cummins power steering pump/vaccumm pump i almost skipped my daughters head off the dash in a panic stop-man i got an ear-full for that.
And if u swap to hydroboost, how do u run the climate control system that is vaccumm powered?
i'm at a loss.
Ok, now somebody take me to school, lol

[Iceman0502]

The last post says it the best. Why spend so much on hydroboost.

My reason is for towing pruposes.

As far as paying 1000 dollars, no thanks. Its funny that you can buy the unit on ebay from elliot for 400 and bj so the same unit for 600.

Anyone try to use a junkyard unit. it looks as though everyone else is doing it. A used unit cost 50 - 100 bucks.


I was thinking of buying one from a 95 astro and it should bolt right to the stock aluminum block. The astro MC will be used as well.

My big question is..... Why do people install a spacer between the hydroboost and aluminum block. Is this to set the proper rod length to the pedal? Coudl I just cut/sleeve/weld the stock rod to shorten it?