How does the electronic locking rear differential work when, Mine has always been good to me, it only works when you’re driving below 20 mph though. Even though nominally both front and rear gears sets are the same, (ie: 3:55) the front differential is a slight bit more aggressive than the rear. A locking differential is designed to overcome the chief limitation of a standard open differential by essentially "locking" both wheels on an axle together as if on a common shaft. This means you will almost always be in 2H when driving on tarmac. The electronic locking differential can provide additional traction should your vehicle become stuck. I could get around in our unusually deep snow today but got stuck in 2.5 feet of virgin snow on a colasack. The rear locker is perfect in conjunction with engine compression braking. In this situation, you also want to avoid getting bogged down before you call on your locker to rescue you. Compared with a standard or open differential, a locking differential (also known as a diff lock, locker, or differential lock) improves traction. So what is the […], Why would you want to fit 33 inch tires on a Hilux? Once you manually engage the 4H mode then you close the center differential and power is split evenly across the 2 driveshafts. If you’ve ever driven off-road with a 4×4 that has a locking rear differential you will be able to relate to how easy it makes a vehicle overcome most obstacles. It also hinders the vehicles capability in certain off-road conditions. JavaScript is disabled. Locking differentials allow both wheels to travel at the same speed, so when traction is lost for one wheel, both wheels will still keep spinning regardless of the amount of resistance. They can be added to either the front or rear axle, or even both axles if … Runners on the outside lane have to run faster to cover more ground to keep up with the runners on the inside lanes. Even though nominally both front and rear gears sets are the same, (ie: 3:55) the front differential is a slight bit more aggressive than the rear. It’s not automatic, you have to engage and disengage. In the 80's it was sold as a Gov-Lok for a while named Command-Traxx and is available in some Chevy trucks as G80 option. Snow and icy conditions create rough roads to drive on. A locking diff will send power to both wheels equally and help you get started on slippery surfaces. Yes, whenever you venture off the tarmac it is time to engage that center diff locker. Do not wait until you are completely bogged down to the axles before you engage the rear locker. DO NOT ever engage a locker on the open road especially on bitumen (Tarmac) and if used incorrectly can cause major damage to expensive drive-train components.Torque is always transferred to the wheels with the least resistance. Is locking rear differential something I should want? Plus enabling only when the vehicle is stopped. Or does it work like a limited slip differential where traction is split between both rear wheels (within reason of course)? How does electronic locking differential work? !eval(ez_write_tag([[300,250],'4wheeldriveguide_com-leader-1','ezslot_12',136,'0','0'])); 4-Wheel drives and off-road driving techniques has been my passion for over 20 years. It consists of a series of friction and steel plates packed between the side gear and the casing.This technology works by allowing the wheels to function normally on the tarmac and high traction surfaces without having to engage or disengage anything. Driving uphill on an uneven track with open diffs requires quite a bit of momentum if you hope to succeed and the risk of damaging your vehicle is increased substantially. So how do you […], link to Biggest Tire on a Stock Tundra - No Lift (FITMENT GUIDE), link to Can You Fit 33" On A Hilux? An automatic locking rear differential solves the problem presented by the open differential by using a mechanism that locks the rotation of one wheel relative to the other. It's almost like a spool when engaged, love it. When in 4 lock those front tires need to slip a bit to keep from bindng up. I want a rear locker for deep snow situations. Use your differential lockers wisely to protect your vehicle, the off-road track as well as the environment. With the rear locker engaged in deep soft sand, your vehicle should get out of a potentially immobile situation before you dig yourself in. The wheels on ice will spin, the other wheels won't rotate at all. That’s because it’s a differential lock that works across two wheels on an axle. Although smoother than other competitive locking differentials, the brute force characteristics of the POWERTRAX LOCK-RIGHT Locker limit general application in less tolerant and more mainstream applications. A locking differential lets the wheels turn at different speeds most of the time, but when its locking function is activated, the wheels both turn at the same speed. Your locking differentials are there to prevent you from getting stuck in the first place by overcoming the off-road limitation of an open differential in challenging driving conditions or cross-axle terrain. Those driving conditions would be a perfect time to engage 4H, splitting the power between the front and rear driveshafts. If anything, I will drive this Bronco in snow more than anything else. Just be careful to know that a cross-axle locker is different to a centre diff lock, even though the concept is … If nothing more, if the cost is … I know this is an older thread, but if you have the option, get the locker. The differential is a drivetrain component that is used to transfer power from the engine to the wheels. This option turns your axle into a solid-state shaft, by locking the differential. My 97 AWD Explorer had a center diff with viscous coupling. Locking Differential vs Limited Slip Diff. Now here is a twist to the locking differential story: When Chevy advertises its trucks with an optional rear locking differential - it indeed is a differential that locks up (automatically). When the differential locks, an equal amount of force is transferred between both tires. TC systems have been incorporated to overcome this “weakness”, So when would you engage a center differential locker? Driving in 4wd will scrub the hell out of those tires and maybe worse if the pressure on the driveline is not released. A locking differential is designed to overcome the chief limitation of a standard open differential by essentially "locking" both wheels on an axle together as if on a common shaft. A 4x4 will outperform a 4x2 with a locker, and you should never lock the differential in slippery conditions because it will make the car fish tail rather than turn. It is important to lock them in order of center, rear, and then front to make sure you don’t damage your drivetrain. (N70 FITMENT GUIDE). These machines have built up a reputation for reliability, durability and capability. Just lock the rear diff, mash the accelerator and keep the wheels spinning to get through exceptionally snowy road sections. When locked, the center diff causes the front and rear propshafts to rotate in unison, increasing grip. Also is the locking diff auto on the Bronco? Differential lockers are used to overcome a limitation of an open differential in off-road conditions by locking the center, front or rear differential to distribute power and torque evenly to both sides of the diff. eval(ez_write_tag([[728,90],'4wheeldriveguide_com-medrectangle-3','ezslot_3',131,'0','0']));If you would like to know more about how a locking differential works and when it is appropriate to use, continue reading…. I would go for a solenoid operated by a momentary switch you have to hold down. First, a diff lock should not be engaged for on road driving, unless weather conditions such as snow or ice mean that extra traction is required. This forces both wheels to turn in unison, regardless of the traction (or lack thereof) available to either wheel individually. Does it work like an open differential where one wheel gets all the power? A locking center diff improves grip in all surface conditions when traction is poor. Also, when driving uphill on an uneven surface you will definitely want to engage your rear differential locker rather than attempt the track with an open diff. Whether it be snow, sand, mud, ice, etc… the LOCK-RIGHT will give you the traction you need. When the nor'easter/Winter Storm Grayson rolled through in early January 2018, I had to give the rear diff locker and ATRAC a test run. For a better experience, please enable JavaScript in your browser before proceeding. ABLS (active brake limited slip) is not a locking diff in any way. Use your locking differential when you want to go off road, for driving on difficult terrain, such as dirt, gravel, mud or snow. It functions similar to a manual mechanical differentials locker but not quite the same as there is still a small amount of traction lost first and wheel spinning necessary before the TC is automatically activated. Just 1 , you do have the option of 373 or 430 gears with the 6.2 gas engine . Here we strive to provide the most accurate, up-to-date, information about the functionality, common faults and latest technology built into most 4 Wheel Drives. Locking vs Torque Vectoring Differentials. As the treads continue to get worn out, it will become more difficult to steer because the treads won’t be able to grip the road properly. It is, however, better than just an open differential. You must log in or register to reply here. This gives you improved handling and traction. To compensate for the corner, runners are placed in a staggered position to make the race fair. (N70 FITMENT GUIDE). eval(ez_write_tag([[728,90],'4wheeldriveguide_com-medrectangle-4','ezslot_2',115,'0','0'])); A locking differential is like a magic button that gives a vehicle a major advantage over an open diff especially under challenging driving conditions like rock crawling or deep loose ruts. for trucks with 4x4, as soon as you start pushing snow, when one rear wheel spins 3 cycles it automatically locks the diff so that both rear wheels have power at the same time. This closes the rear or front axles and makes them operate as one unit and not independently as before. No matter how much traction (or how little) a wheel has, it will be forced to rotate in sync with the other. The program allows this site to link and advertise with Amazon.com. This diminishes the good traction that you once had. The purpose of differentials is to allow the wheels of the vehicle to rotate at varying speeds. Driving in 4wd will scrub the hell out of those tires and maybe worse if the pressure on the driveline is not released. Unlike an open differential that allows both wheels to turn at different speeds especially when cornering, the diff locker forces the axles to rotate at the same speed and is only designed to be engaged once traction is limited or almost lost. A locking differential or “lockers” as they are commonly referred to in off-road circles, essentially locks an open differential, may it be the center, front or rear diffs, and forces both axles to operate as one unit and turn at the exact same speed irrelevant of the traction or lack thereof. Do you get the idea? Rear locker engaged driving downhill also decreases your chances of slipping as traction is increased across the rear axles. The LSD works by allowing a small amount of wheel spin and then automatically engages the LSD (Limited Slip Diff) eval(ez_write_tag([[336,280],'4wheeldriveguide_com-large-leaderboard-2','ezslot_11',118,'0','0'])); LSD works by limiting the independence between right and left axles. Every vehicle has two differentials, a front one and a rear one. ! The following question will soon be academic with traction control becoming more and more commonplace, but: How much would a locking differential help a 2wd vehicle that’s stuck in the mud or snow? To find out, read further…. First, a diff lock should not be engaged for on road driving, unless weather conditions such as snow or ice mean that extra traction is required. Also, could not pull a mini van up a complex road as my tires were slipping on the wet snow even in 4x4 low mode. eval(ez_write_tag([[336,280],'4wheeldriveguide_com-banner-1','ezslot_5',117,'0','0'])); Lock the center diff when the surface you are driving on gets slippery, like gravel roads or when there is ice or snow on the tarmac. Then rear differential lockers are engaged when you want to overcome an off-road obstacle slowly without any damage. If you’re driving primarily in snow, it’s helpful but you don’t want to lock it in all the time, as it can grab in snow when you don’t exactly want it to. Locking Differential Cons The biggest setback to locking differentials is the high level of wear and tear that your tire treads will experience. This gives you improved handling and traction. When To Use Rear Diff Lock If you feel the vehicle is struggling, stop the vehicle and immediately engage the lockers and watch it crawl out. This means the site earns advertising fees through Amazon. A Locking differential is an amazing piece of engineering if used correctly. Thick muddy conditions is also a perfect opportunity to engage rear or center diff lockers. It works well because a computer controls the the transfer clutch and applies brakes on spinning wheels. This single drive-train component can mean the difference between a good off-road 4×4 vehicle and an excellent one. Those driving conditions would be a perfect time to engage 4H, splitting the power between the front and rear driveshafts. And to answer the OP's question, a rear-locking diff is better than four wheel drive (4WD) for the reason explained above because some 4WDs have two open diffs. The wheels are allowed to turn at different speeds like when taking corners but will lock up when driving in a straight line and the clutch pack or metal plates detects it is in a high-torque situation. While a differential usually allows each rear wheel to rotate at different rates, automatic locking rear differentials "lock" the rear wheels, forcing both to rotate at the same speed. The locking of the rear differential should only be engaged during low-speed, extreme off-road situations where one wheel is likely to not be in contact with the ground. Open diffs tend to send the power to the wheel that is slipping, so one wheel spins, and you go nowhere. Exactly the same concept applies to the relative rotation of the front axle to the rear, and that’s called a “centre differential”. A locking differential is designed to overcome the chief limitation of a standard open differential by essentially "locking" both wheels on an axle together as if on a common shaft while still allowing them to rotate at different speeds when it is required (such as when negotiating a turn). The electronic locking differential is a device housed in the rear axle that allows both rear wheels to turn at the same speed. But what is a locking differential used for and when does one engage the locker? eval(ez_write_tag([[336,280],'4wheeldriveguide_com-box-4','ezslot_4',116,'0','0'])); Open diff vehicles like the older Land Rover Defenders, Suzuki Jimny and many others without any TC (Traction Control) aids will need more momentum and struggle a bit in cross-axle off-roading conditions.Off-road Example:If one wheel is in mud/sand/snow and the other is on the tarmac with good traction, the torque will always be transferred to the wheel with the least resistance i.e the wheel with the least traction. Use your locking differential when you want to go off road, for driving on difficult terrain, such as dirt, gravel, mud or snow. Usually, they are open differentials and you need to manually close the rear or front diffs by flipping a switch and engaging an electronic differentials locker to close it. The same applies for the front drive system. So you really want to get in and out of deep water as quickly as possible. I'd assume yes. 2H mode allows better fuel consumption and more even tire wear. A center diff locker (4H mode) makes for easier, safer and more controlled driving in sand, mud, gravel, snow. When in 4 lock those front tires need to slip a bit to keep from bindng up. If not enough momentum is used, you could find yourself stranded with your wheels spinning in the air. Although smoother than other competitive locking differentials, the brute force characteristics of the POWERTRAX LOCK-RIGHT Locker limit general application in less tolerant and more mainstream applications. no where in the acronym does it say "locking". Lock the center diff when the surface you are driving on gets slippery, like gravel roads or when there is ice or snow on the tarmac. Remember when fitting aftermarket rims with bigger tires your main concern should be the wheel offset and the tire width, since diameter doesn’t affect the fitment. You can activate the differential electronically and shift it on the fly within the differential operating speed range. Torque is always transferred to the wheels with the least resistance. The locking of the rear differential should only be engaged during low-speed, extreme off-road situations where one wheel is likely to not be in contact with the ground. This is done by splitting the torque of the engine into two separate outputs. I just want to know the difference between locking and non locking differensials in deep snow. Which I answered and gave my experience with. The 4WheelDriveGuide domain is an affiliate program participant with Amazon and some other sites. Differentials work by transferring the resistance to the least resistance tire. Happy 4 Wheeling and remember, Safety First!! This is the simplest and least sophisticated mechanical system possible. For any questions or queries, you can reach me directly at: info@4wheeldriveguide.com, The most commonly asked question amongst truck owners and the 4WD community is, what is the largest/biggest tires size you can fit on your truck? Most vehicles allow you to switch this function off as it can hinder the forward progression quite a bit, especially in sand. This is accomplished by locking the differential to distribute power and torque evenly to both sides of the diff. In contrast, my '91 Audi Quattro had an open front diff, a Torsen center diff and a lockable rear diff. Plus enabling only when the vehicle is stopped. And to answer the OP's question, a rear-locking diff is better than four wheel drive (4WD) for the reason explained above because some 4WDs have two open diffs. Had to partially dig my self out. All automobiles on the road contain devices between the wheels called differentials, or gear trains. A manual differential lock means the differential is open by default. The torque coming from the drive shaft then forces the diff closed. When we refer traffic and it results in business sales as a result of it, we are compensated by these companies. You will have near perfect control of the vehicle. This domain, 4WheelDriveGiude.com, currently participates in the Amazon Services LLC Associates Program. when ABLS engages it does not lock the diff at all, it merely brakes the spinning wheel so that the diff will be forced (by nature of an open diff) to then transfer most power to the other wheel. It is not recommended to drive the vehicle with the differentials locked on pavement due to … Traction Control (TC) functions similarly to a differential locker accept it activates automatically once the vehicle senses the loss of traction. I've read so much online at this point I'm upside down. This forces both wheels to turn in unison, regardless of the traction (or lack thereof) available to either wheel individually. By locking a front or rear differential it allows the axle to turn both wheels simultaneously at the same speed irrespective of traction differences. Whether it be snow, sand, mud, ice, etc… the LOCK-RIGHT will give you the traction you need. Scenario A: unlocked center diff, one axle on moderately grippy surface, other axle on ice. https://www.ford-trucks.com/forums/1535733-elocker.html. The locking differential is stronger, but you have to actively engage it, which means it's better for situations where you know that you'll need it … Biggest Tire on a Stock Tundra - No Lift (FITMENT GUIDE), Can You Fit 33" On A Hilux? Here you only want to engage the rear differential locker because engaging front lockers limits your vehicles turning ability drastically. It’s excellent for wheeling. Get a 4x4, chain control is the biggest reason I feel in your area. While you could get away with using a limited-slip differential on mildly snowy and icy roads, you may need a locking differential if the conditions are severe. The main problem with driving on snowy and icy roads is the traction difficulty. I've been in some hairy situations where I was glad to have the option on my current F150. Re: Locking rear differential - Newbie question Feb 16 2019, 8:06pm It's not a true locker that you can jump on and burn both tires, it's a low speed locking system designed to get you unstuck and, IIRC, disengage over 20 mph. Open diff or electronic lock under 20 mph is the only 2 choices from Ford , get the locker option . I'd like to get into off roading, but even that will at best be only a few days per year. It is not recommended to drive the vehicle with the differentials locked on pavement due to … Least resistance applies brakes on spinning wheels lockers are engaged when you to! 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