Hydroboost with rear drums?
FTE Legend
Joined: Nov 2015
Posts: 30,912
Likes: 4,123
From: Angier, NC
What dose hydroboost have to do with the parking brake?
It also has nothing to do wither drum drum or disc drum or disc disc.
Hydroboost takes the place of the vacuum asst power brake unit and that's it.
Now the master will make a difference wither drum drum or disc drum or disc disc.
Dave ----
It also has nothing to do wither drum drum or disc drum or disc disc.
Hydroboost takes the place of the vacuum asst power brake unit and that's it.
Now the master will make a difference wither drum drum or disc drum or disc disc.
Dave ----
Thread Starter
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Lead Driver
Joined: Mar 2008
Posts: 7,182
Likes: 380
From: Near Los Angeles
What dose hydroboost have to do with the parking brake?
It also has nothing to do wither drum drum or disc drum or disc disc.
Hydroboost takes the place of the vacuum asst power brake unit and that's it.
Now the master will make a difference wither drum drum or disc drum or disc disc.
Dave ----
It also has nothing to do wither drum drum or disc drum or disc disc.
Hydroboost takes the place of the vacuum asst power brake unit and that's it.
Now the master will make a difference wither drum drum or disc drum or disc disc.
Dave ----
Thread Starter
|
Lead Driver
Joined: Mar 2008
Posts: 7,182
Likes: 380
From: Near Los Angeles
Cool. But I'm not interested in oem set-ups. I wondered if anyone has changed a dent side to hydro and kept the rear drums. Thanks.
Fleet Owner
Joined: Jan 2004
Posts: 26,007
Likes: 575
From: Brentwood,CA
Lots of guys use GM front single piston calipers and pads on the Dana rears, you give up 60% of your friction contact area and actually lower your braking pressure because the caliper bore is too large. By the way I am the guy that runs hydro with rear drums.
Laughing Gas
Joined: Sep 2018
Posts: 1,223
Likes: 119
I run hydro boost with 78-79 front disk and rear drums. Works great. I did a thread about my conversion.
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Laughing Gas
Joined: Jan 2012
Posts: 887
Likes: 70
From: Santa Clarita
I'm also a guy that runs hydroboost with rear drums. 
have a 1975 F-250 that was just converted to hydro with front disc and stock drum rears. The parking brake is stock as well.
I run a Wilwood proportioning valve and Earls Adapter for the front and rear distribution.
have a 1975 F-250 that was just converted to hydro with front disc and stock drum rears. The parking brake is stock as well.
I run a Wilwood proportioning valve and Earls Adapter for the front and rear distribution.
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Mountain Pass
Joined: Oct 2017
Posts: 213
Likes: 6
From: Maysville, Ky
Not a dent, but quite a few 66-77 Bronco's are using disk front and drum rear w/hydro. I'm actually considering doing that on my 71 because the vacuum assist is not getting it for me after I went to 35" tires. There are even a few Bronco owners that use hydro on their drum/drum setups with good results. I would use disk front / drum rear with hydro on my 75 with no qualms.
Mark.
Mark.
More Turbo
Joined: Oct 2015
Posts: 638
Likes: 36
From: Southwest Missouri
Laughing Gas
Joined: Sep 2018
Posts: 1,223
Likes: 119
This is a good dent thread: https://www.ford-trucks.com/forums/8...sion-done.html
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Lead Driver
Joined: Mar 2008
Posts: 7,182
Likes: 380
From: Near Los Angeles
I did mine with rear El Dorado p.brake calipers, but they work poorly and I'm tired of them. I wanted to hear from members who use the hydro with drums, 'cause I'm considering swapping back.
Mountain Pass
Joined: Feb 2003
Posts: 229
Likes: 4
I have hb on my 79 w/rear drums. Don’t use the parking brake that much, because it’s automatic, but used the factory parking brake assembly. Uses junkyard parts, actually from an 06 Ford diesel hb and factory master. Then you just have to figure out the lines.
FTE Legend
Joined: Nov 2015
Posts: 30,912
Likes: 4,123
From: Angier, NC
Look at the early diesel trucks Ford & GM and even GM cars that ran diesel motors as they had to use Hydroboost.
BTW I had an 86 K5 Blazer (full size) with a 6.2 diesel Hydroboost disc / drum from the factory.
Other than the hydroboost seal going bad and dumping 2 systems full of fluid inside and the rug soaking it up it worked great for 230K miles.
Most of them miles pulling my car trailer to / from race tracks.
Dave ----