Parking Brake Replacement on 5th Gen Toyota 4Runner

Parking brake on Toyota 4Runner is a fairly simple design, but installation process is quite difficult. I attempted to install it myself at first. After a few unsuccessful attempts, I decided that I would rather pay someone else to do the job, and devote the time I save to other things that need to be addressed.

I visited a few shops in Los Angeles area and asked them if they could do this repair for me. Toyota dealership wanted to charge me an arm and a leg just for OEM parts, initial diagnosis, and repair. The other two shops simply refused to do the job after I told them that the car came from New York. The third shop agreed to take on the job for a reasonable price, but I felt a bit iffy about that place. So, in the end, I attempted to do the job on my own and after a few tries finally found a way it can be done. I hope this information will be useful all of you DIYers out there.

Parts

Parking Brake Hardware Kit: CARLSON 17395
Parking Brake Shoe: POWER STOP B850



Installation

Repair Manual

Manual Page: 585

Repair manual doesn’t go into too much detail on how Toyota Certified Technician would reinstall all of these components.



This YouTube video covers basics of the installation; however, it doesn’t give any details on the most challenging part of this job.

https://youtu.be/YHuNLAff1ZY

Installation of Parking Brake Shoe Hold Down Spring

"Install the No. 2 parking brake shoe assembly to the backing plate with the parking brake shoe hold down spring cup and parking brake shoe hold down spring.
2010 Toyota 4Runner Repair Manual, 59"

It is fairly easy to put all of these parts together. Where it gets difficult is compressing the spring and aligning the hole of the hold down spring cup with the end of the hold down spring pin. You barely get any access to this assembly from the side. The only access point that I found useful is a tiny hole that aligns exactly with spring-cup assembly.



This is the opening from the side.



The best way I found to deal with this problem is by creating a tiny tool that is able to fit through this hole. The tool resembles a fork with very sharp ends. These ends are able to bite into the spring cup and rotate it. All of this is happening as you are pressing down on the blunt end of the tool to compress the spring.



The other part of the problem is the spring pin. You have to find a way to hold it steadily in place while you are doing all of these maneuvers. On the left side of the parking brake assembly the pin is straight, so it is a lot easier to make it work. On the opposite side, however, the pin is bent in a zigzag pattern, so it can fit around parking brake shoe lever.

The easiest way I found to get the job done, is to tie a thin thread onto the end of the pin. The thread is wrapped around your fingers to create tension, which allows you to get more control of the pin as you are pushing it in. Imagine pushing a pin through a tiny hole, and maneuvering it with your index finger and a thumb. You loose control of it very easily.



While I was working on this job, the lower shoe hold down spring cup would consistently get out of alignment. In the end I used a small piece of tape to secure it to the shoe.





This is the end result.



Installation of Return Tension Springs

When you are installing return tension springs, keep in mind their order. The manual doesn’t give you specific order you should install them in. From my own experience, when I installed black first, and then green, one of the shoes didn’t make full contact with the back plate.

 

Recently changed rotors on the back of my 2018 Off-road 4Runner. Passenger side had a lip to the parking brake drum. So when I pulled to rotor, the spring cap slipped off the brake shoe. Found the tool for pressing the spring cap on to the pin.
CAL364: At National Tool Warehouse
https://www.nationaltoolwarehouse.com/mobile/Toyota-Brake-Spring-Tool-P7800.aspx

 

Wow! How many miles did you have before your parking brake pads were worn enough to replace them?

 

Thanks for taking the time to do the write-up.

 

I have this tool. Beware the two prongs are spaced for OEM cup washers. The cup washers from aftermarket kits (Carson/Raybestos/Centric etc) have their divots spaced differently.

$22 BGS 6896 | Brake Spring Installer | for Toyota Parking Brake | 185 mm

https://www.amazon.com/dp/B0825KBWFK/ https://www.amazon.co.uk/dp/B0825KBWFK/

 

So brake shoes behind the axle flange, are the rear rotors also Drums for the parking brake?

 

Yes.

 

This thread is giving me cold sweats lol

 

Just don’t use the M8 bolt to drive the rotors off, without adjusting the shoe adjuster! Access the star on the adjuster wit the flange hole at the six o’clock position. Move the teeth on the star in a downward direction. Don’t forget to adjust in an upward direction when the new rotors on.

 

I’ve replaced drum brake shoes a few times. I always felt insecure whether I’d adjusted them properly with the star adjusters.

 

My issue with drum brakes is i don't do them enough to be proficient and every manufacturer has their own tweaks.

 

See the S-shaped nails holding the shoes? Whoever designed the mechanism at Toyota probably watches hentai tentacle-rape porn.

 

The best way is actually to hold the nail (pin), spring and cup washer toward the back of the hub flange with a clip remover tool, swing the shoe into place, then withdraw the clip remover tool. You'd then rotate the tabbed washer to lock it into the shoe.



See Timmy the Tool's video:

 

Good vid.