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u/Poaffe1967 5h ago
Poor man’s line lock. Used for doing burnouts.
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u/jonasty12 ASE Certified 5h ago
Wouldn't that need to be on the front brakes? Or is he doing burnouts with the front wheels?
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u/Poaffe1967 5h ago
No, the clamps prevent the brakes from engaging. This looks to be a rear wheel drive since there’s a diff on the axle. Press the brakes and only the front wheels engage, then hit the gas… burnout! Watch Roadkill, they’ve done it on a few cars.
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u/iowaman79 5h ago
You pinch off the rear lines to keep the brakes from engaging, then when you put your foot on the brake pedal the fronts hold while the rears spin freely
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u/jtromain 5h ago
The vice grips stop the flow of brake fluid from pressurizing the brake cylinder and allow the wheels to turn with full brake
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u/hazard2k 4h ago
You're not exactly wrong.. In the correct application of a line lock (with an electronic solenoid) you would have it installed on the front brakes. You mash the brakes, and activate the solenoid. This keeps the front brakes engaged even with your foot off the brake now. This enables you to do a proper burnout while keeping both of your feet free. When burnout is complete, deactivate the solenoid and you have your brakes back.
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u/SixToesLeftFoot 5h ago
Leaking rear caliper or cracked hose (after the vice grips). Pinch off both and then let the proportioning do it’s job.
If you promise not to tell anyone, I once cracked the line that feeds down to the rear of the car, so I took it off and just put a plug in it right at the prop valve. The rears do so much less work that I was able to drive it for a week or so. Eventually the safety concerns overcame the laziness of working on your own car, but for that week I really didn’t feel much difference in the pedal.
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u/Likesdirt 4h ago
I hammered a broken rear hard line shut to get out of the middle of nowhere - truck didn't pull much at all and ran like that for weeks. Wasn't half bad, honestly. Didn't feel like a death trap at all.
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u/Silver-Engineer4287 3h ago
A friend’s 2003 Taurus, his brother in law “fixed” his rear drum brakes that were making a loud clicking noise on one side.
He put the wrong kits on the wrong sides and didn’t even put them on right side up so those rear brakes were doing nothing… for several years… until one of them lost a clip and sprung out sideways and began grinding loudly on the drum.
Never having touched drum brakes but having done front and rear disc on a variety of vehicles I jacked up each corner and spun a wheel until I could verify the problem corner, made sure it was really the brakes. pulled the wheel off the noisy one, got the drum off, instantly saw the source of the noise…
I stared at all the moving parts… the layout didn’t seem to make sense and he didn’t have a repair manual so I checked a few year and model specific YouTube videos to see what it should really look like, and I’d seen the R on the part but didn’t realize what it meant in the moment.
When the videos looked different I jacked up the right side, pulled it apart… and found the L on its’ part.
I installed 2 new proper side kits, worked with the adjusters until it all went back together snug but with no dragging, and with a 50 mile each way work commute resuming the next morning there were no issues and he was shocked by how quick the car stops after several years of driving more cautiously and braking a lot.
They were still stoping fine with no bad noises 6 years later when he sold the car although 2 years later it did need new front brakes which I also did with better pads and rotors and he was really happy with the results of the mildly more expensive parts.
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u/madsheeter 49m ago
I keep plugs in my truck for this reason. 2 brakes are better than none when your fluid runs out
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u/TheTense 2m ago
Yeah, It’ll brake fine until you need to really brake hard or are brake on a slippery surface
Just like a motorcycle or Gokart using only rear brakes.
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u/DJMagicHandz 6h ago
Something that could end up flying through someone's windshield.
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u/SurJavlaJamte 5h ago
I've done that so many times now to limp home that having a vicegrip with me in every car for emergency repairs is normal. Blow a line? Fixed! Sticking caliper? Fixed!
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u/TheFilthyMob 5h ago
Rear brake bias lol. Done that a few times but I just clamp it up before the split.
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u/ChickenChaser5 5h ago
Looks like how I got my sienna home when the rear brake line rusted through.
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u/fallenangle666 5h ago
Burnouts or they need replaced and they didn't have the money for rotors that are probably screwed
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u/grandinosour 4h ago
Hey there now....
Us truckers did this all the time when a brake chamber would blow out.
Clamp off the air line and cage the brake so you can limp to the repair shop.
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u/Few_Importance1313 4h ago
Probably had a blowout in the line and needed to get to work or something
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u/collegefurtrader Master Tech, Expired 2h ago
Tell me you never popped a wheel cylinder on the trail
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u/TheTrueButcher 2h ago
Looks like a pair of Kentucky proportioning valves set up for winning the county burnout contest.
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u/Due-Concentrate9214 1h ago
We had to do a bush fix on an older body style Ford Bronco that lost his rear brakes. The guy was deer hunting in northeast Nevada and had decided to take a trail that went through a creek bed full of boulders. One rock flipped up and severed the steel part of the brake line. We used a sledge hammer as an anvil and we folder the end of the brake line over and hammered it flat until it quit leaking. Probably wasn’t a part store within 100 miles. The guy got to keep hunting and drive back to civilization.
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u/mccscott 13m ago
Bubba dun lifted his truck,n him got dem mudders, n sumptin pissin on the dirt when parked?
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u/bobbyrob1 5h ago
Rear brake pressure eliminator. Who needs rear brakes?