Did you check RockAuto Auto Parts I but alot of things off there and they always have good prices. Look there and see if you cna find a MC with that rod. I seen alot of them with 'Speed Control' on them IDK if thats what you want or not. But hope this helps.

 

well in search of that rod, i found a used unit for 50 bucks rod included. so i installed that this evening. how nice it is to be able to stop again lol. i used a plastic T to join the 2 return lines, should the plastic T be ok?

 

Will the pushrod swap from the vac. boost?

 

I'm not 100% sure but I think they are different lengths

 

Well, I guess I'll be finding out soon enough. I was hoping someone would find a source for the pushrod. Maybe the dealership? Worth looking if no one else can get one.

 

X2 on that

I have read that you can use the original pushrod or weld to the correct lenght the "new" pushrod.

Good luck.

 

Well, update. I finished this conversion this morning, and I found some helpful info. Most importantly, the pushrod from the vac boost is significantly longer than what is needed for the hydro. Second, if you didn't get a pushrod with your hydro, as mine didn't every parts person will look at you like you have two heads when you ask if you can just get it. So, as I work to upgrade everything on my truck, mickey mouse now lives in my brake system Here's what I did: I bought a 12" section of 1/2" threaded rod, and cut it into sections of different length. I bought a 1/2" fender washer that was the same outside diameter as the housing of the master cyl. Then, I bought a compression spring that fit the smaller opening in the pusher in the hydro. The rod actually threaded into the opening in the master cyl, then the washer fit over that, and the spring went over than, then I bolted it all together. All the parts were from Home depot, and the rod length I used was 3 3/4". All in all, it works perfect, except that I believe that my power steering pump is worn out, because the brakes are pretty firm. Not that it's bad, and not that that is my only clue, but I think I'm going to upgrade to the 450 pump in the future. Actually, I was curious what axles Ford ran under the 450's; I might wanna steal some axles if they're heavier. If not, I'm just do a master upgrade when I do a disc conversion. Anyways, back on topic, the brakes are much better, and in fact I towed a 12k load today and it worked very, very well. Obviously the braking isn't actually improved as far as brake fade or anything, just the firm pedal is much more reassuring.

 

Thanks for the update. Glad that its working well and good luck with the disc conversion.

 

bringing up an old thread again, iv been fine all summer with no AC, but now cold weather is around the corner, being able to switch my heat off of defrost might be beneficial, so, what do you do for vacume when the vac pump is eliminated? elec pump, SD have em right?

 

yea you can get a setup out of a late model super duty or excursion ( pump and canister ) I'm in the hunt for a cheap setup just haven't found it yet. I still have my vacuum pump for the HVAC system

 

mine is still in my truck too, but it must be pretty darn close to completely non functional. il have to keep my eye out for one. thanks

 

I'm gonna do the hydroboost conversion on both my trucks soon and was trying to the obspowerstroke.com. Site to work and it won't load anyone else able to load it?

 

I did my conversion this past weekend, got the setup from 89ford73. Nice to have a consistent pedal but need a little extra leg pressure then with the vacuum assist set up. The only problem I had is my 96 master cylinder had an ABS sensor that plugged into the wire harness and the hydroboost that I had gotton didn't have any ABS on it, not sure if later years do and not sure what year my hydroboost is from. Anyways I unscrewed the sensor from the vacuum master cylinder and just plugged it into the harness and the ABS light went out and so far has been out.

Should the effort to push the brake pedal with hydroboost be the same as with the vacuum assist?

 

What about the lines from ps pump to hydroboost

 

New lines specifically for obs hydro boost. And Another hose that goes from the barbed connection on booster and t into the line that comes out the bottom of the pump reservoir