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Best rear disc kit for the money using the BB 76-77 9 inch rearend

ntsqd

heratic car camper
Joined
Jan 30, 2005
Messages
5,953
Loc.
Upper SoKA
They were originally there because hydraulic brake systems were less than reliable. (A 1920's era Rolls-Royce that I worked on several decades ago had the brake plumbing run thru the steering linkage - there were no rubber hoses in the hydraulic system!) A mechanically actuated emergency brake was thought to be a good idea. Then as they got to be less necessary as back-up service brakes they got semi-repurposed as parking brakes.
 
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bigmuddy

bigmuddy

Contributor
Bronco Guru
Joined
Dec 28, 2004
Messages
8,063
Loc.
Marthasville Missouri
Well, there you go, I have learned something today. Still learning gents at the ripe old age of 27 errr 57 or something...

Thanks!
 

ba123

Contributor
Bronco Guru
Joined
Oct 29, 2022
Messages
2,756
Loc.
CA
Yeah, maybe that is one nice thing about how the Estopp works. It can be used as an emergency brake. It's designed that way to slowly engage. Kind of annoying how long it takes to deploy when you are stopped and want it quickly but...

I also set it up to use the brake pedal trigger signal so that it will not deploy while I'm moving unless I press the brake pedal along with the button.
 

fordguy

Contributor
Bronco Guru
Joined
Jan 23, 2005
Messages
6,356
I agree with ntsqd that they are parking brakes. I've always personally disagreed with them being called emergency brakes. Sure they will apply and slow the vehicle and are better than nothing. But they are nothing to be relied on in a true emergency.
Parking brake. That is why I went with a hand brake beside the drivers seat. The explorer parking brake is adequate, definitely not overkill. Install was easy. I did consider the electric parking brake.
 

duffymahoney

Contributor
Bronco Guru
Joined
Apr 26, 2015
Messages
2,734
I have a 77 with the highest end wilwood kit, I absolutely love it, and feel far more safe. I have no prop valve, just a wilwood MC. It requires 17" wheels though.
 

Got4wd

Contributor
Full Member
Joined
Jan 22, 2009
Messages
242
Loc.
Texas
I spent some time with range today on the brackets. Gave him all the measurements that he requested. Said he would be back to me in a few days. Once the prototypes are in my hand I will post pics.
 

jamesroney

Contributor
Bronco Guru
Joined
Sep 11, 2007
Messages
2,594
Loc.
Fremont, CA
Yeah, maybe that is one nice thing about how the Estopp works. It can be used as an emergency brake. It's designed that way to slowly engage. Kind of annoying how long it takes to deploy when you are stopped and want it quickly but...

I also set it up to use the brake pedal trigger signal so that it will not deploy while I'm moving unless I press the brake pedal along with the button.
Your transmission has a parking pawl. Why would you ever need a parking brake, other than to satisfy the legal requirement?

Always wondered why you automatic transmission people even set the parking brake? Do you actually use yours? If so...why?

As I understand it, a parking brake is a legal requirement to have...but not to use.
 
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bigmuddy

bigmuddy

Contributor
Bronco Guru
Joined
Dec 28, 2004
Messages
8,063
Loc.
Marthasville Missouri
Your transmission has a parking pawl. Why would you ever need a parking brake, other than to satisfy the legal requirement?

Always wondered why you automatic transmission people even set the parking brake? Do you actually use yours? If so...why?

As I understand it, a parking brake is a legal requirement to have...but not to use.
Some years ago, I had bronco that had a C-4 and someone apparently had been relying on the parking pawl.
C-4 (early years) had weak parking pawls and would break when the vehicle was idling and put itself into reverse.

I had this happen to a very straight bronco in my backyard, completely ruined the bronco it hit the tree so hard when it backed in to it. So yeah, the E brake can be quite important.
 

ba123

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Bronco Guru
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Oct 29, 2022
Messages
2,756
Loc.
CA
I use the p-brake because I don't like having the weight of the truck up against that puny little part. Doing so can also make it difficult to pull out of Park when there's a lot of weight on it.
Exactly.

I don’t trust all my work to that crap.

Not to mention, it’s not like the trans is connected to the rear wheels. Who knows. Xfer case could pop out of gear, rear end could take a crap…my wheels are locked.
 

fordguy

Contributor
Bronco Guru
Joined
Jan 23, 2005
Messages
6,356
Your transmission has a parking pawl. Why would you ever need a parking brake, other than to satisfy the legal requirement?

Always wondered why you automatic transmission people even set the parking brake? Do you actually use yours? If so...why?

As I understand it, a parking brake is a legal requirement to have...but not to use.
i went to a hand brake, kinda like break open the glass type deal
 

SLOWnEASY

Contributor
Sr. Member
Joined
Sep 26, 2022
Messages
517
Loc.
San Diego, Ca.
I worked on transmissions that had a broken parking pawl. My mother in her Maverick in the 70's we lived on a hill and she only used the parking pawl. One day she couldn't get it out of park. Had to call a tow truck where the driver had to pull hard and yank it out of park.
I have drilled into my kids. Put it in neutral and set the parking brake. One that holds then shift into park and shut it off.
 

ntsqd

heratic car camper
Joined
Jan 30, 2005
Messages
5,953
Loc.
Upper SoKA
I can see the folks in the really cold parts of the country thinking "y'all are idiots using the parking brake!" One Xmas trip to Central OR, which I wouldn't call really cold country except that a Northerner was due in while I was there, my grandad cautioned me to not use the p-brake. Put it in gear instead. And if I had a block heater to plug it in because the forecast was for really cold. That might have been my first truly white Xmas!
 

jamesroney

Contributor
Bronco Guru
Joined
Sep 11, 2007
Messages
2,594
Loc.
Fremont, CA
Northwest Fabrication has been busy on an Atlas parking brake. pic below.
 

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toddz69

Sponsor/Vendor
Bronco Guru
Joined
Nov 28, 2001
Messages
11,205
Prototypes are done and shipping to me to test fit. Here’s a pic.
Shoot - you don't mess around! Looks like you're using the 04-06? E150 rotors? Smart choice since they are already 5x5.5.

Todd Z.
 

Got4wd

Contributor
Full Member
Joined
Jan 22, 2009
Messages
242
Loc.
Texas
I got tied up with my axle being away at blasting and paint. It’s back now and I need to press of the bearing to test fit. Should be this week.
 
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