Poor mans locker, using the break.
CF Veteran
Joined: Apr 2009
Posts: 18,786
Likes: 14
From: CT.
Year: 88
Model: Comanche (MJ)
Engine: 4.0 HO
I got my expedition stuck in deep snow. I thought about this and tried this theory.
It did not work, power went to the spinning wheels anyways.
The shovel was more handy.
It did not work, power went to the spinning wheels anyways.
The shovel was more handy.
CF Veteran
Joined: Sep 2010
Posts: 21,168
Likes: 5
From: Milwaukee, WI
Year: 1987
Engine: Check
So what? The tire that slips will spin a little faster than the one that grips then. The open differential isn't all or nothing. If you apply the brakes and get a 60/40 split of power, and that 40% is enough to overcome the brakes and get the tire rolling, then you're moving again. And if you hit the brakes and gas too hard and grenade the spiders, then you're f'ed.
If both tires were spinning then neither are getting traction.
The idea is to get the stationary tire to spin. An open diff will give full power to the freely spinning tire. There is no split power. You need a lsd for that...?
CF Veteran
Joined: Nov 2011
Posts: 2,322
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From: Edmonton
Year: 1990
Model: Cherokee
Engine: 4.0
cuts fuel injection so there is less power sent to the wheels, with a combination of abs modulation to slow the wheels that are spinning the most and keep the vehicle stable.
Thread Starter
Senior Member
Joined: Jul 2010
Posts: 997
Likes: 1
From: Long Island NY
Year: 2000
Model: Cherokee
The thing is, the tire that isn't moving in this situation isn't "stuck". It doesn't require any extra power to get rolling. It just isn't getting any power at all because it's all going to the tire that is spinning.
Now apply some resistance to both tires via the brakes. The differential adjusts and begins sending some torque to both axles (I'm talking axle shafts, not the front/back axle tangent this thread went off on). If the torque to the tire that has traction is greater than the force on the brakes, then it should start to roll, right?
Now apply some resistance to both tires via the brakes. The differential adjusts and begins sending some torque to both axles (I'm talking axle shafts, not the front/back axle tangent this thread went off on). If the torque to the tire that has traction is greater than the force on the brakes, then it should start to roll, right?
CF Veteran
Joined: Nov 2008
Posts: 1,021
Likes: 3
From: mass
Year: 1992
Model: Cherokee
Engine: 4.0 high output
if you take a look at detours build thread he has two e brake levers. Not sure if that's for skid steering or poor man's Locker set up but I'm sure it would work if your spining one rear tire in the snow
CF Veteran
Joined: Aug 2011
Posts: 1,994
Likes: 8
From: San Jose
Year: 89
Model: Cherokee
Engine: 4.0 I6
It took me a while to figure out, but I finally understand what you are saying. your confusing quote and terrible analogies didn't help much. This has nothing to do with the brake business. this is about the amount of torque the wheel gets when it in the air and what not, "no4x4yet" will know what im saying. I had to think of other examples that demonstrate a load and a no load situation. I thought about the hand-crank on my dad's boat trailer. While there's slack in the line you can crank as fast as you want, its easy. but when you start pulling the boat it builds up. torque no torque yah yah im done.
Junior Member
Joined: Dec 2011
Posts: 93
Likes: 1
From: cd'a idaho
Year: 89
Model: Cherokee
Engine: 4.0
Ok as far as the brake pedal locker.i have used this many times. If you have a limited slip it puts enough pressure on the diff to engage so ya your KINDA locked. Now for the locker. If the all four tires are spinning then one of.the fronts will be in sync with the rear 2.
Thread Starter
Senior Member
Joined: Jul 2010
Posts: 997
Likes: 1
From: Long Island NY
Year: 2000
Model: Cherokee
It took me a while to figure out, but I finally understand what you are saying. your confusing quote and terrible analogies didn't help much. This has nothing to do with the brake business. this is about the amount of torque the wheel gets when it in the air and what not, "no4x4yet" will know what im saying. I had to think of other examples that demonstrate a load and a no load situation. I thought about the hand-crank on my dad's boat trailer. While there's slack in the line you can crank as fast as you want, its easy. but when you start pulling the boat it builds up. torque no torque yah yah im done.
Thread Starter
Senior Member
Joined: Jul 2010
Posts: 997
Likes: 1
From: Long Island NY
Year: 2000
Model: Cherokee
A good analogy for the torque thing is trying to loosen a lug nut thats on a car thats already jacked up. Tire just spins so you arent making any more torque than is required to spin it. Again torque in equals torque out.
Senior Member
Joined: Nov 2011
Posts: 928
Likes: 0
From: Manhattan, Kansas
Year: 1997
Model: Cherokee
Engine: 4.0L
