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Author Topic: How to control the electric emergency brake after a rear disk conversion  (Read 2029 times)

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Offline ChuckvB

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I'm in the process of helping my daughter restore her Granddad's CJ-3B.  Safety is my #1 concern so I've started procuring Disk brake conversion parts.  If I convert the rear drums to disk (I'd like to as it all needs an overhaul and I dislike drum brakes).  The only challenge is getting information on the electric control.  Does someone have some info on the power and control needs of the electric emergency/parking brake?  Also, Is doing only one side with the parking brake or both sides? (Doing one side could cause some differences in rear brake forces too).  I can see a benefit but the cost is more.  Otherwise, I'll rebuild the drum brakes :-(

Offline Mark W.

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Do as you like but aside from better performance when WET Disc's won't stop a Willys any faster then a good set of 11" Brakes. Cause at 60mph I can lock up all four corners with my 68 Wagoneer 11" brakes on my 3000lb CJ-2A 60% of all braking is done by the front brakes.

You could easily swap the fronts to Disc then run E Brake 11" brakes and come up with something like a Lockar E Brake handle to engage it. I went a more complicated way and made a fancy balance bar pivot and control mine with the in dash cane handle.

As to the electric E brake I have no experience.
Chug A Lug

1948 CJ2A Tub and Title
1949 CJ3A Windshield
1957 CJ5 Frame and Springs
134L 9.25" T-90 30%OD D18 D25 and D44 30 spline
11" Brakes, Saginaw Steering, 12V electrical
DIY Aluminum Hard top

Offline ChuckvB

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It's a fair consideration and eliminates safety issues of loosing power to a brake while running down the road.

Offline ChuckvB

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I found out the electric motors drive gear trains and reversing the current moves them ( I wasn't sure they weren't just solenoids). So they will fail fixed, if power is lost.  Now just to select a safe parking brake switch you can't just bump while driving....

Offline JeepsterJim

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check with Brennan.  I am going to install his Disc brake kit with electric E-brake's.  One can lock both sides with one switch, use two switches and lock them independently, or both.

 He is very helpful!!!

  https://brennans-garage.com/products/electric-emergency-brake-eebrake-rear-bracket-kit-41-75-jeep    rennan

Offline DavidF

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i used calipers from a 2015 and up ford fusion when i did my rear disc conversion. Works pretty good. if you have access to a place that does plasma cutting i can send you a cut file. My cost for 6 brackets was 70 Canadian. wiring is simple, just a double pole double throw switch and a five amp breaker.