And that is exactly why I am now doing a hydroboost conversion. I replaced my 350 stuff a few years ago (3?) and now the booster is actiing up. I am a firm believer in redoing the brakes, which is why I replaced my booster and MC. Unfortunately, most of the remans are garbage. I am really disappointed, so I decided to upgrade to hydroboost instead of another junk parts store reman.

For the record, I wasn't unhappy with the braking performance of the F350 stuff. I am just mad that it didn't last.

 

Hydroboost has been the best modification I ever made on my truck, braking went from barely acceptable to simply outstanding. The pedal has a great progressive feel and hauls down my truck with 35's in no time.

 

How would you prove this?

I can't prove or disprove it, but I can offer the personal anecdote that the stock brakes on my Bronco were unsafe and, after a series of gradual changes, hydroboost fixed the issue.

At first, everything but the hard lines and proportioning valve were replaced with stock units with no difference; then the lines and valve were replaced with no difference.

After that came the full one ton swap and "T-bird," calipers and one ton wheel cylindiers with a marginal improvement but not the point that I felt safe if I needed to panic stop. Then the gutted proportioning valve and rear disks were installed with no improvement. I even took the master cylinder and booster back and exchanged it for another, thinking at this point that I'd obviously gotten something that was no good.

At the time, about 11 years ago, I had used the Cadillac calipers and got frustrated enough trying to bleed them that I took them to a shop to bleed them.

Maybe that master cylinder wasn't up to snuff for the rear disks, but it didnt work well with drums either.

Thinking back to driving that vehicle back then, there's no way I'd drive it on the freeway today if it were still acting the same and I sure as HELL wouldn't have any of my friends in it.

But then, after putting hydroboost in (as well as ditching the Cadillac calipers in the back in favor of something that actually works), the Bronco stops as well as any modern truck.

Maybe it was all chance that I'd just gotten bad part after bad part 'till the most recent swap, but the hydroboost has been running strong since 2010 or so and hasn't let me down in any way.

None of this is intended to change your mind, as I dont think anyone here will do that...but at least one vehicle out there has had a significant positive difference from it. I dont have a way to show to you on paper that it's more than a placebo, though.

If your stock system is working safely, I think that you are probably pretty damn fortunate.

I used the booster and master cylinder off of a 2003 F-250. The hydraulic pump was a generic GM Saginaw that I had already swapped in. I just swapped the reservoir to a dual inlet unit.

There are probably some stock lines that will work with whichever pump you use, but I built my own out of PTFE hose and swapped everything over to steel AN fittings. The Saginaw pumps have at least two outlets they can come with; older ones, maybe mid 80's back seem to all be standard reverse flare and newer ones, up through modern production have all been metric with an O-ring, from what I've seen, so plan your lines or fittings accordingly.

Besides the hoses, the only thing that had to be custom on mine was a bracket to mount the booster to the firewall. The actuator rod fit onto the shoulder bolt and bushing that came stock with the truck.

If I had it to do over again, I'd use generic AN adapters and hose from Aircraft Spruce or someplace like that instead of ones from Jegs or Summit or wherever I got mine from. The regular steel braided aircraft Teflon (also sometimes generically labeled "PTFE," hose) will run just about any fluid and is rated to 3K PSI working pressure. I've routinely tested it to 5K PSI with no failure.

If you convert to AN fittings, be sure to mark your steering gear box's in and out ports. Hooking them up backwards is unpleasant, I've heard. Also, dont use aluminum fittings. Not only are they not rated to the strength of steel fittings, but the steel in your booster and steering gear box doesn't play well with the aluminum fittings, even with the anodized coating and having a corroded fitting rupture while going around a corner isn't what you want; it makes a mess.

+1

 

The wonkinator got verminated.

...wonka is now flippin burgers: with the oompaloompas and asking if ya'd like fries with that.

 

Haha. Young guy making dumb statements on the internet at 2:00 a.m. on a Friday night/Saturday morning? I bet it'll never happen again. I'm just glad I could match wits with him!

 

Thank you! That guy was a dumb punk!! Other peoples children!!!

 

The unit you show from the Bronco Graveyard is made by:
hydratechbraking.com<O</O

 

So he got banned for good!? if so, ...he was a punk.

 

For hydroboost, check this guy Hydroboost your FSJ, CJ/YJ, Commando, M715, Bronco, IH, S10, C3, FJ40 for $125+, TX - International Full Size Jeep Association....

 

Dunno if it's permanent but there is peace once again in the galaxy.

THANK YOU MODERATORS.