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Old 12-07-2022, 07:22 PM   #1
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Help! Need Emergency Brake System

I have a 2000 Damon Daybreak with 1999 Workhorse chassis. I need a whole emergency brake system. Where in cornbread hell can I get one?
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Old 12-07-2022, 09:44 PM   #2
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Try RV salvage and surplus centers by state.
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Old 12-07-2022, 10:42 PM   #3
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Why do you need whole system ? If it is completely missing.. you could just use a hand brake kit.. they are must cheaper.. but have their drawback.. there are vids on you tube on this.. look up Chevy auto park replacement..
Good luck and keep us posted
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Old 12-08-2022, 07:12 AM   #4
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My mechanic says it is leaking in 3 places, the reason for whole system.
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Old 12-08-2022, 07:14 AM   #5
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You are in the wrong sub forum. Stay on IRV2 and go to the workhorse/p30 chassis forum. Lots of good information. UltraRV has some of the parts. Some are common parts available anywhere. You must explain your problem. Is it a failure of the hydraulic system? maybe the cable and or shoes? Not many mechanics are familiar with this pos. On that chassis website there is info from a fellow called OEMY. He is an expert on these systems. Read his posts. I am not sure if he is still around. Be prepared to spend 4 figures. Remember that your transmission does not have a park pawl. When you put the gear selector in P the Auto Park brake is applied. Some people have bypassed the auto park and simply use a cable. BUT then the brake would not be applied when you put the gear selector in P. That could be dangerous if you forget to also apply the emergency brake. Get right over to that chassis forum and read away. Different years and different models of the Workhorse may have different systems. Once you are on that forum you should be able to determine which version is on your chassis.
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Old 12-08-2022, 11:41 AM   #6
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Can you do any of the work yourself ? Very hard to find any mechanics that will work on them.. they would just rather replace.. one can cheaply and effectively fix theses with basic hand tools and help from the many great members here.. these systems are easy to understand and repair and maintain..
So if I were you.. I would be looking for another mechanic.. one that has and willing to fix leaks.. I fixed several leaks.. one at a time.. with the help of members.. I fixed 4 leaks.. for under hundred bucks.. and today most mechanics will not get out of bed for that.. so.. if you post pictures.. and address one leak at time.. read.. section on important workhorse discussions.. sub section 28.. print off.. take your time.. read thru.. and ask questions.. there are great members here.. that will walk you thru each step.. I would like to thank you.. members past and present and sponsors and moderators that walked me thru mine.. I am sure we can help you..
Good luck and keep us posted
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Old 12-08-2022, 02:32 PM   #7
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Moisheh is correct. The workhorse section will give you the best info on this system. My last MH was on the workhorse chassis. There are two "switches" that often fail and are easily replaced for less than $100 each. After I learned all I could about the system I always carried a spare set. The one at the actuator seemed to fail most often. I never had to replace the one at the pump. Anytime I replaced the switch I would also replace the relay. The actuator can also fail. This too is an easy DIY replace. I think I paid around $700 when mine failed.
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Old 12-08-2022, 06:17 PM   #8
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Years ago I had a Pace Arrow with that system. The cable melted and killed the shoes. Then I had Safari Trek. I was in Tucson on I10 min rush hour traffice. The brakes came on. I could not stop and there was nowhere to pull over. I drove about 1/4 mile and was able to get onto a ramp. It was Friday. I wa still scared to get under near the traffic. Called my road service and he disconnected the system. Over the weekend I pa ked against curbs or used wooden blocks. On Monday a service center replaced 2 of the switches. The shoes were shot. The hydraulic cylinder was puking oil. The drum was white but usable. I spent about $ 500. The front end was also in need of repair. I forgot that the P30 had a weak front end. I sold the Trek. Someone back then was selling an air operated system. Around $1000. Well woth the cost.
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Old 12-08-2022, 09:22 PM   #9
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Help! Need Emergency Brake System

The “ whole system “ implies you need the hydraulics and the mechanical brake parts mounted on the DS behind the tranny. Most likely you need some or all three of the pressure switches. Upgraded switches are available at: www.urvp.com. Lots of mechanics don’t know how to “fix” these infamous AAPB systems, but replacing an entire system is rarely necessary. THAT is just throwing parts at a problem instead of repairing it.
Yours is the J71 version of the AAPB, which was used thru the 2004 model year of the P32 chassis.
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Old 12-08-2022, 09:47 PM   #10
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The actuator has a seal inside and a member here did his for 3.00 yes three dollars.. simple hand tools.. no skill.. sorry don't know how to link stuff.. but it is here.. search actuator seal.. he got off eBay and there is hydraulic shop in Texas that has them.. I carry extra seal.. I thought I saw someone on you tube rebuilt one.. the regular switches can be matched up.. almost everywhere.. or on line.. for less than a hundred.. we need more discussions about this.. pay your mechanics to grab a beverage and spend about 15mins with us.. and we will walk him through it.. so he can charge you couple thousand..
Good luck and keep us posted
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Old 12-08-2022, 10:05 PM   #11
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Quote:
Originally Posted by edgray View Post
The “ whole system “ implies you need the hydraulics and the mechanical brake parts mounted on the DS behind the tranny. Most likely you need some or all three of the pressure switches. Upgraded switches are available at: www.urvp.com. Lots of mechanics don’t know how to “fix” these infamous AAPB systems, but replacing an entire system is rarely necessary. THAT is just throwing parts at a problem instead of repairing it.
Yours is the J71 version of the AAPB, which was used thru the 2004 model year of the P32 chassis.
Mine is a 2003 15k lb chassis and has the manual pedal push, cable driven driveshaft parking brake. I actually thought that all P32s used the Chevy 4L8* transmission but guess I was wrong with that thinking.

I'm not at all familiar with the AAPB but I would not think it that difficult to tear into and figure out. Of course the big problem might be finding parts.
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Old 12-09-2022, 08:49 AM   #12
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Quote:
Originally Posted by Mudfrog View Post
Mine is a 2003 15k lb chassis and has the manual pedal push, cable driven driveshaft parking brake. I actually thought that all P32s used the Chevy 4L8* transmission but guess I was wrong with that thinking.

I'm not at all familiar with the AAPB but I would not think it that difficult to tear into and figure out. Of course the big problem might be finding parts.
Yes, you were wrong .

WCC used the 4l80-E 4 speed for their 1999 and 2000 model year P-32 series chassis. When the 8.1L V-8 became standard in model year 2001, they began using the 4L85-E tranny, which was said to be a "heavy duty" version of the previous version.

Regarding the infamous J71 AAPB, it was used on all the P-32 series having a GVWR of 16,500 pounds or more thru model year 2004. They used the J72 "improved" version AAPB for the 2005 (last) model year of the P32 series and the first few model years for the W-24 series, first offered in 2004 model year.

ALL of the above info is from the 2006 Chassis Guide published by WCC.

Great resource of info about the J71 AAPB is here: www.rvautopark.com
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Old 12-09-2022, 10:20 AM   #13
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My mechanic says it is leaking in 3 places, the reason for whole system.


My mechanic is a big rig specialist. He has found a new pump and says once that is in he can move on the other parts. I appreciate all responses and going to shoot him some of ya'll helpful advice. THANKS!
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Old 12-10-2022, 01:56 AM   #14
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Give this to your mechanic.
https://www.rvautopark.com/
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