If you were only going to run one would it be better to put it on the front or rear? I've still got drums on the rear and thinking it may be a waste to put it on the rear.

Later down the road I was planning on rear discs and line locks front and rear but since im on a budget just looking for some advice for the time being.

I have one on the rear to satisfy WEROCK.
It worked a little bit with new shoes on the rear drums. Couple hours later it did not work at all.
I hope to do rear discs over the winter.

If you were only going to run one would it be better to put it on the front or rear? I've still got drums on the rear and thinking it may be a waste to put it on the rear.

Later down the road I was planning on rear discs and line locks front and rear but since im on a budget just looking for some advice for the time being.



I have a line lock on the rear of my CJ7 and it works pretty good. I look at
it this way, most of the trails I run go uphill, so I want the locked brakes on
the axle that's on the downhill side of the vehicle.

Put it on the either end. You still can lock either axle. If you put it one the front and are sitting with your foot off the brake and engage the line lock it will lock out the pressure to the front wheels. Then if you hold the brake pedal it will only apply the rear brakes. In your case it won't do as much good since they are drums but it will help if you are trying to move the front end. If you don't have selectable lockers the effect will be minimal anyway.

Line locks are great, as long as they are on a disk brake axle. Putting them on a drum axle is a waste of time, in my opinion. I have front and rear electric line locks on my FJ40 (w/ F&R disks), and they work extremely well. They are the Sam Biondo line locks from Summit Racing, and are only $39 each. You put each one on its own toggle switch. I am installing these on my F-Toy. :)

Are you guys using these as cutting brakes or as e-brakes. I'm looking to use a rear line lock as an ebrake. Any thoughts? Sorry for the hijack.

Are you guys using these as cutting brakes or as e-brakes. I'm looking to use a rear line lock as an ebrake. Any thoughts? Sorry for the hijack.

F-Toys aren't allowed to have cutting brakes. We can run separate line locks for the front axle and rear axle, but they cannot be run to single wheels or right/left sides.

Put it on the either end. You still can lock either axle. If you put it one the front and are sitting with your foot off the brake and engage the line lock it will lock out the pressure to the front wheels. Then if you hold the brake pedal it will only apply the rear brakes. In your case it won't do as much good since they are drums but it will help if you are trying to move the front end. If you don't have selectable lockers the effect will be minimal anyway.

This is against Werock rules.

Werock rules make it illegal to lock out any brakes

This is against Werock rules.

Werock rules make it illegal to lock out any brakes

What?! Show me.

Put it on the either end. You still can lock either axle. If you put it one the front and are sitting with your foot off the brake and engage the line lock it will lock out the pressure to the front wheels. Then if you hold the brake pedal it will only apply the rear brakes. In your case it won't do as much good since they are drums but it will help if you are trying to move the front end. If you don't have selectable lockers the effect will be minimal anyway.

Yeah the front may get it first. Dont feel like wasting my time if the rear decides not to work like some of the others have said.

What?! Show me.



There is a big thread somewhere here on pirate that Dustin goes to great lengths explaining that locking out brakes is against the rules. I know I was disappointed I had a setup that blocked out front or rear brakelines with ballvalves, allowing you to use the pedal to modulate the open brake cct.

Chris, you've got it a bit mis communicated. I said in those threads that you cannot turn off (block) a brakeline with zero pressure in it to use as a cutting brake...as in, don't shut the front brakes off then use the pedal to operate only the rear. That is against the rules and VERY dangerous.

However, with the same setup, you are allowed to (and it is VERY safe) press on the brake pedal, close the rear brake valve, let off the pedal (this keeps the rears locked) and then use that as a front dig. With that, you still have the brake pedal to apply the brakes on the front end, in essence giving you all 4 brakes. This also works for rear dig if you press the brake pedal, close the front valve to lock the fluid in the front brakes, and then letting off the pedal to do rear dig...this still allows you to get all 4 brakes in one motion by stepping on the pedal...fronts are already locked, the rears work off the pedal.

Others were shutting off their front brake (blocking them with a valve) and then using the brake pedal to get rear brakes, but not front brakes, for their front burn (and vice versa for rear burn)...the problem is, to get FULL brakes, they'd have to release the brake pedal, open the valve, and step on the brake pedal again. This was very dangerous and has put many people at high risk, especially judges and spotters.

You still can lock either axle. If you put it one the front and are sitting with your foot off the brake and engage the line lock it will lock out the pressure to the front wheels. Then if you hold the brake pedal it will only apply the rear brakes. In your case it won't do as much good since they are drums but it will help if you are trying to move the front end. If you don't have selectable lockers the effect will be minimal anyway.

Thanks for popping in Dustin, isn't this what you meant by blocking or locking out the front brakes with zero pressure?

If you put it one the front and are sitting with your foot off the brake and engage the line lock it will lock out the pressure to the front wheels. Then if you hold the brake pedal it will only apply the rear brakes.

This is illegal and very dangerous...DO NOT DO THIS.

Instead, push the brake pedal, close the valve, let off the brake pedal, that end stays locked and you can still use the pedal to apply the other brakes safely and INSTANTLY. There is a difference between the two methods. If we find out someone's done it the incorrect way and put our judges/fans/volunteers/media at risk, there will be a huge issue.

Thanks for the info. I have done this and when I click off the line lock I thought I was getting all the brakes without moving my foot from the pedal? If there is potential pressue behind the linelock and you release it how does it work different then just hitting the pedal normally? Not trying to argue just understand.

I get what Dustin is saying, say you got the front brakes blocked off with the line lock and something goes wrong, all you have is one end breaking and possibly the other end still turning. Then potentially running into a judge or something. With front and rear line locks and one is engaged not matter what, when you hit the brake pedal all 4 brakes are on. Say when you hit the line lock switch and it doesn't disengage you are stuck with just one end breaking.

Brake proportioning valves and potential bleed-by screws everything up...in theory, potential pressure seems to work...but in reality, we've seen it fail in a big way and hence, it's been outlawed. However, same parts used, just a different order in which you apply the brakes/locks, and you're still in business with a fully working burn option.

i have few dumb question !
say you wanted to do a front burn and you have your back locked would'nt you have to have a rear driveline disconnect to the rear or risk putting everything in a bind and busting stuff?
i thought driveline disconnects were illegal in a comp rig !!
how are you going to do this without a disconnect?
a twin stick will give you 2 hi/lo and 4wd hi/lo !!
how can you do a front dig with out a disconnect?

i have few dumb question !
say you wanted to do a front burn and you have your back locked would'nt you have to have a rear driveline disconnect to the rear or risk putting everything in a bind and busting stuff?
i thought driveline disconnects were illegal in a comp rig !!
how are you going to do this without a disconnect?
a twin stick will give you 2 hi/lo and 4wd hi/lo !!
how can you do a front dig with out a disconnect? You can't, but you can do rear burns and thats just the f-toy way!!!!!!!!!

Correct, I use this as an example of how it works, not how it actually will be in all classes. However, if you Toyota guys will upgrade to those limited slip transfer cases, you could do front and rear burns! :dustin:

However, if you Toyota guys will upgrade to those limited slip transfer cases, you could do front and rear burns! :dustin:

Sorry Dustin, not going to happen.

John, Are you using electric line locks? I never thought of it but you could turn them around backwards and accomplish what you were talking about.
Have you done this in the past? The reason I asked is, as Dustin stated IT IS ILLEGAL IN WE ROCK. But at the same time, it has never come up in this forum as a question.

To be clear:

WE Rock states that you must have functional brakes on all 4 wheels at all times. The formula Toy rules allow for a parking brake, but NOT TURNING BRAKES. We have found that you can use an electric line lock as a parking brake on the front brakes. This works great as a parking brake and at the same time you can lock the front brakes, put it in 2wd drive low range an do rear burns in competition and it is totally legal.

This is not locking out locking out any brakes from working. It is locking brakes in the applied position. This way you still have 4 functional brakes any time you need them.

BTW, I have tried using rear line locks in competition and can't see any way that they help you. My opinion.

Thanks for bringing this up Ricks72ntx.

Glad my dumb question turned into a good discussion :laughing:

Sorry Dustin, not going to happen.

John, Are you using electric line locks? I never thought of it but you could turn them around backwards and accomplish what you were talking about.
Have you done this in the past? The reason I asked is, as Dustin stated IT IS ILLEGAL IN WE ROCK. But at the same time, it has never come up in this forum as a question.

To be clear:

WE Rock states that you must have functional brakes on all 4 wheels at all times. The formula Toy rules allow for a parking brake, but NOT TURNING BRAKES. We have found that you can use an electric line lock as a parking brake on the front brakes. This works great as a parking brake and at the same time you can lock the front brakes, put it in 2wd drive low range an do rear burns in competition and it is totally legal.

This is not locking out locking out any brakes from working. It is locking brakes in the applied position. This way you still have 4 functional brakes any time you need them.

BTW, I have tried using rear line locks in competition and can't see any way that they help you. My opinion.

Thanks for bringing this up Ricks72ntx.

Yes electric.

This would be a good rule to make more clear since I spent 2 years not understanding it. Maybe i'm the only one? Come to think of it I don't actually remember doing this during a comp but not positive??

I fully understand now it's not really the fact of having to switch the line lock or whether or not you have to release the pedal but the fact that you only have 2 wheels braking during the burn or maneuver. If i'm not quick enough about switching off the linelock it could be bad.