80 vs 200 rear parking brakes

[96bruzer]

Hello Fellow Mudders,

Does any body know what the difference and how the rear parking brakes work on the 80 and 200? We can probably compare it to the 100 also I guess. Which one do you think is a better system?

I kinda know how the rear parking brakes / rear brakes work on the 80 when you adjust the rear parking brakes the brakes tighten up. But with the 200 the pads and the rear parking brakes are separate. Does anybody know how the brakes get tightend up when you adjust the rear parking brakes?

It would be nice to know how they both work. I did do a search and did not find any answer.

Thank you in advance!

 

[CycloSteve]

FZJ80 Rears have two systems in place.

1. Brakes = disks
2. Parking Brakes = mini-drums inside of the disks. This is a separate "mechanical" system.

They are separate from each other as their pads are not shared.

Not sure about the 100 or 200 setups, but the 80 is pretty straight-forward. There are a few good writeups on how to properly adjust as they are notoriously loose on our rigs.



Steve

 

[firetruck41]

As CycloSteve said, their are basically two systems on the 80 series, and they separate from each other, except that the drum parking brake uses the inside of the "hat" of the rotor, as the "drum". The parking brake has two adjustments at each wheel, one on the back side of the rotor, where you adjust the cable, and inside the drum where you adjust the brake shoes, accessed from the hole in the front of the rotor hat. Then there is an adjustment at the parking brake handle.

Tightening up the parking brakes does not tighten up the normal/service brakes.

This is a very common setup for many vehicles with rear disc brakes. I do not know how the 200 series parking brakes are set up though.

 

[Eicca]

All I know is my parents' 100 will very enthusiastically perform a 270* spin when you pull the handbrake on an icy road just for the heck of it and my 80 doesn't even hold itself on a slightly-slanted driveway...

 

[firetruck41]

...and my 80 doesn't even hold itself on a slightly-slanted driveway...

Mine wouldn't either, until I adjusted them last week. Works pretty well now!

 

[Tools R Us]

The brake wheel hardware on the FF '80 and the '100 are pretty much identical, no idea how the 200 is setup.

 

[Tools R Us]

All I know is my parents' 100 will very enthusiastically perform a 270* spin when you pull the handbrake on an icy road just for the heck of it and my 80 doesn't even hold itself on a slightly-slanted driveway...

If you have the stock semi float axle, your e-brake needs service. With the drum brake setup, the e-brake uses the service brake shoes/drums, so much larger than the little shoes/drums of the later setup. When properly setup, the e-brake should be stronger than the later system.

 

[kidglove13]

I have the SF rearend on my 94
Getting the ebrake properly set up is a real PITA
But once I got it set my rig will not role no matter how steep the incline for the most part
Same should be true for a FF ebrake as well I would assume

 

[firetruck41]

If you have the stock semi float axle, your e-brake needs service. With the drum brake setup, the e-brake uses the service brake shoes/drums, so much larger than the little shoes/drums of the later setup. When properly setup, the e-brake should be stronger than the later system.

This is a good point that I hadn't though of. The early/late models have a difference due to the rear drum brakes of the early models. Thankfully, I see the OP has a 96, so my earlier post is accurate re: his model... :whew!:

 

[96bruzer]

As CycloSteve said, their are basically two systems on the 80 series, and they separate from each other, except that the drum parking brake uses the inside of the "hat" of the rotor, as the "drum". The parking brake has two adjustments at each wheel, one on the back side of the rotor, where you adjust the cable, and inside the drum where you adjust the brake shoes, accessed from the hole in the front of the rotor hat. Then there is an adjustment at the parking brake handle.

Tightening up the parking brakes does not tighten up the normal/service brakes.

This is a very common setup for many vehicles with rear disc brakes. I do not know how the 200 series parking brakes are set up though.

Firetruck or anybody, can you please explain why my service brakes / pedal feel and travel and also the performance are better after proper adjustment of the rear parking brake through the holer/ star of my 96 FZJ80? Less dipping when braking and feels much more powerful? I wonder if the brake pads system is somehow connected to the LSPV? Really curios now on how this works...

Thank you in advance!

 

[firetruck41]

Placebo effect... There is no connection between the two systems. The cable goes from the base of the parking brake handle, to the rear axle, there is a mechanical connection where the cable "splits" to each drum brake in the rotor hat. It is all cable actuated, unlike the hydraulic service brakes.

 

[powderpig]

So Bruiser, do you know the difference between a full floater rear axle and a semi floater rear axle? If not take a gander at some threads that describe the difference. Then let us know what you find.
Is the hole you adjust the rear brake in the front of the drum or on the backing plate on the inboard side of the axle? If you do not need to take off the wheel to adjust the brake, then you have a semi floater rear axle.
I have seen a rare bird before where a 95(maybe a 96) had rear drums and a semi floater before. Either it was replaced from a accident or may of come in that way.

 

[96bruzer]

Placebo effect... There is no connection between the two systems. The cable goes from the base of the parking brake handle, to the rear axle, there is a mechanical connection where the cable "splits" to each drum brake in the rotor hat. It is all cable actuated, unlike the hydraulic service brakes.

Thanks Firetruck for the info and I now understand a little more about the system.

I still feel weird that the brakes are better after adjustment but maybe its just like after an engine wash and car wash were the truck goes much faster, lol...

 

[96bruzer]

So Bruiser, do you know the difference between a full floater rear axle and a semi floater rear axle? If not take a gander at some threads that describe the difference. Then let us know what you find.
Is the hole you adjust the rear brake in the front of the drum or on the backing plate on the inboard side of the axle? If you do not need to take off the wheel to adjust the brake, then you have a semi floater rear axle.
I have seen a rare bird before where a 95(maybe a 96) had rear drums and a semi floater before. Either it was replaced from a accident or may of come in that way.

Powderpig I have the full floater, hole in front of drum for the parking brake with disc service brakes...