The majority opinionsways in favor of 4WD. When trying to select a pickup with towing capability, I want to be sure that the truck has at least power to both back wheels. If you purchased the truck used or can't find the code, proceed to Step 2 for another form of testing. That means both wheels have to turn at exactly the same speed, so it eliminates the differential problem. When the differential is unlocked (open differential), it allows each wheel to rotate at … 2003 SSEi 70 2003 SSEi 70 Enthusiast; Member; 70 142 posts; Name: Patrick; … Limited slip differentials require a certain amount of friction modifiers in the gear oil of the differential to operate properly. Pop a couple of axle stands under your truck and have a look at the number of cover bolts, the distinctive shape of the cover, the number of ring gear bolts, and ring gear diameter your Ford, Dodge or Chevy differential has. ESOF gives you 2H mode, which is good for normal on road driving, enhanced efficiency and a smooth drive. I was wondering if 4x2 implied a locking differential. Now, the IWE and hub gears also have to mesh up very quickly, all while the half shafts are spinning up to speed- … Link to post Share on other sites. An icon will appear in your cluster letting you know that your rear differential is locked. They can also be identified by whether the center section is an integral or … In essence, it locks them together as a unified shaft. Vehicles with ABS have sensors on each wheel to determine if a wheel is locked when it should be spinning and if the ABS needs to be activated for that wheel. Without an ID tag, your last ditch effort may involve getting up close and personal with your diff. This article applies to the Ford F-150 (2004-2014). The 2WD also boasts better gas mileage, putting it ahead of its 4WD counterpart at first glance, but a vast majority of F-150 drivers would disagree. A limited slip differential, or LSD, has a set of clutch plates that inhibit the free rotation of either wheel. Which 4×4 mode should I use when I’m towing my boat? The Nissan Xterra 4x4 does not have a locking rear differential, but the Xterra Pro4-X does have a locking rear differential. If you’ve shifted into 4A you’ll see 4×4 Auto illuminated. Manufacturer Markings. 4WD is mainly used in poor driving conditions such as snow or mud. To use electronic locking rear differential, just select the mode you want to be in, then pull the knob out or rotate on four by two systems to set it. And it’s designed to use in off road situations. A locked differential is great for serious off … Shop Differentials >> As you’re driving in a straight line, all of your wheels are sprung at the same … Thus, with the TC locking the front and rear driveshafts together and the IWEs locking the half shafts to the front hubs/wheels, you have 4WD. 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. I'm thinking about replacing the 3.55's with 4.56's because I want bigger tires and will … read more (Note: Some 2010 F-150's have this option, but for SuperDuty 2011 was the first year. When you do you may see a 4X4 Shift in Progress, in your message center. Use this information at your own risk. While moving one tire by hand, If the tires move in the same direction (or one doesnt move), it means that it is most likely a limited slip (posi traction) rear end. As a prime example of Eaton’s know-how, the ‘Vette Z06 utilizes an Eaton blower for its LT4 small-block V8. Ford F-150 owners have reported 81 problems related to differential unit (under the power train category). How to tell if your car or truck has a limited slip differential - … Back to the G80 locking rear diff then. Electronic Locking Rear Differential. The locking differential limits the two wheels on an axle to rotate at the same speed. If it has an "L" on it where the ratio is listed, then it's a trac-lok. So by now you may have guessed what a diff-lock is. A limited slip rear uses a special additive to the gear oil when you do a gear-oil change, and it is necessary or damage could occur. Many manufacturers offer ABS traction control standard on their pickups and SUVs. In the automatic locking differential, both wheels of an axle are locked relative to one another on applying torque. Both are designed to maximize available torque to the wheel or wheels with the most traction, but they accomplish this in different ways and have different applications. Also since it’s a 4-wheel system, the Expedition 4x4 performs as if it has dual front and locking differentials. The F-150’s traction control system is programmed vary similar to the Expedition’s system. Plan on not having “anti-spin” within say 60,000 miles. Both limited-slip and locking differentials solve a problem with the standard open differential found on most passenger cars. Check the axle code on the door jamb. Admittedly, there have been a handful of people that have taken issue (or have … I must say for such a high-tech well-packaged truck, the 4WD system is still rather basic. If at any time you see a “Shift Delayed – Pull Forward” message during your shift, it means that there’s a block in your 4×4 system. The minimization of slipping and sliding seems to be worth … If a vehicle has been equipped with a locking front differential, some type of manual or automatic locking hub is usually required. When should I use 4-wheel drive? Is a locking rear differential necessary? Ford Vehicle F150 Electronic Locking Differential - YouTube The wear-out mileage is variable but they all wear out and then you have basically an open diff. Yes, it's only good for under 20mph, but it works, VERY well. Let’s talk about how to shift between modes, and what you’ll see in each of them. These types of systems can be found on Toyotas, Nissans, Jeeps, Ford, GMs, Rams and many others. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not ChrisFix. Although Ford has used a variety of external controls to engage the front locking hubs on its 4x4 trucks, the electric shift actuator motor employed to engage the transfer case … This video shows you how to tell if your rear wheel drive car or truck has a limited slip differential, and also what gears it has. When truck owners get serious about performance, one of the first high-performance upgrades focuses on the differential carrier. The RPO code should be listed inside the glove box. Ford F150 4-Wheel-Drive basics. This is done by splitting the torque of the engine into two separate outputs. Both wheels then turn together, regardless of whatever traction is available. F150 Hub locking Actuator Delete . Like when you’re going to be driving in mud, snow, or rocks for an extended period of time. If this happens, shift in to a forward gear like Drive, move your vehicle forward a few feet to alleviate the block, then put your vehicle into Neutral. This allows the hub to engage as needed or to remain in the locked position all the time. The limited slip differential will transfer power from one wheel to the other if one of the wheels begins to slip, thus providing the Ranger with better traction on slippery surfaces. Even with two drive wheels off the ground (airborne), the Expedition can still move forward as if nothing is wrong. If it's two numbers like "19" then it's an open diff. Depending on the type and … Regardless of which system you have, you can change 4X4 modes using the switch on your center console to the right of your steering wheel. For quicker acceleration, a tweak to a truck’s rear differential is not just about acceleration, but rather changing the entire function of the axle itself. However the Pro4-X is significantly more expensive. Conclusion. All automobiles on the road contain devices between the wheels called differentials, or gear trains. Lots of Chevrolet's have always had the "G80 Locking Differential", and until now Ford only offered the Limited Slip Differential. That’s why diff-locks can … With a locked differential, each wheel can apply as much spinning force as the traction will allow. The new BMW 1 Series says goodbye to rear-wheel drive - Review, How to engage 4-Wheel Drive on Toyota RAV4 (2005-2011), How to use Sport, Eco and Eco+ drive modes on Hyundai Kona Electric, How to use steering wheel audio controls on Toyota Camry. I have a 2009 F 250 V10 with a sterling 4:11 rear end. Shop F150 Differential Carriers. Any … This means the torques on each side will be unequal but have equal rotational … With unique added features including the hill descent control and electronic locking rear differential to give the most possible control of your vehicle, along with the ESOF which allows you to shift between two 4WD modes, the Ford F150’s driving experience is truly one of the best. It locks the rear differential, forcing both rear wheels to spin at the same speed for improved traction. It currently has the 3.55 differential and Electronic locking rear end knob. The other telltale sign would be the wires that plug in to the e-diff actuator motor on the differential. It has good “street manners” though, compared to a locking differential. Your 4×4 vehicle will have either available electronic shift on the fly, or ESOF system, or an available 2-speed automatic 4-wheel drive system that allows you to select different 4×4 modes depending on your driving conditions. If it's a letter followed by a number like "H9" then it's a trac-lok. Keep in mind, if you do happen to have a full size spare, that is a good clue that you might have a locker. Mechanism. For the 96-06 Silverado's, the factory limited slip differential will have a code of G80. F150 Auto Actuator. Keep in mind, your vehicle may have something called electronic locking rear differential. There is the cone type LSD, there is the clutch type LSD, there are viscous type, there are locking type differentials (mechanical, pneumatic and electric operated) and all accomplish the same basic thing- applying power to the wheel having traction or basically both wheels simultaneously. Inspect the differential for a metal tag or model marking. Hello every one , I know that GM has an automatic diff lock , how can I know if my car ( 2017 Sierra 1500 SLT z71 ) is equipped with it or not , my other car is f150 which has an actual button to activate the diff lock . Like when you’re going to be driving in mud, snow, or rocks for an extended period of time. Some automatic hubs, like the “Selectro” automatic locking hubs on Jeeps with six-bolt lock-outs, have an “auto” and “lock” position on the dial. Step 1. Also please check out the statistics and reliability analysis of Ford F-150 based on all problems reported for the F-150. These clutch plates enable each wheel to retain some power while cornering. It’s good for everyday driving and is especially useful on wet surfaces, snow, or gravel. And it’s designed to use in off road situations. Thanks Sent from my iPhone using Tapatalk. Its a clutch based non-heavy duty unit, not a mechanical locker like the GM G-80. They wear out. To use electronic locking … ChrisFix assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. I know this is an older thread, but if you have the option, get the locker. Before servicing the rear differential on your Ford Ranger, you need to know if it’s a limited slip or not, as limited slips require a different gear lube and a special additive to ensure the differential functions properly and to prevent … Kymco launches new four wheel drive ATVs! The 4WD version is about $3,100 more. It locks the rear differential, forcing both rear wheels to spin at the same speed for improved traction. It's almost like a spool when engaged, love it. Failure Date: 01/15/2021 Vehicle makes vibration style noise from the rear … On occasion you may also hear noises when you shift into one of the 4X4 modes. Their springs then force the locking collars onto the hub gears, locking the half shafts to the hubs and, by default, the front wheels. Contact the author: tomasharper@wheelsjoint.com, How to use 4-Wheel Drive System on Ford F-150, How to use On Demand 4 Wheel Drive on Toyota Tundra, Four-wheel drive and more than 1000 hp - Karma reveals details about the E-Flex platform. Open Differential Problem. But you know how it is: More technology often equals more problems. The two-speed automatic four-wheel drive system gives you 2H, 4H and 4L modes, as well as, 4A (automatic) mode – which automatically determines the driving conditions and provides power to the front and rear tires as needed, to not only control wheel slip if it occurs, but to help prevent it in the first place. And once you exceed 25 miles an hour, the system will automatically disengage. Or is it not that necessary? Differential Unit problem of the 2017 Ford F-150 1. In this article we’ll discuss the external controls that engage the transfer case and automatic locking wheel hubs on Ford electronic shift-on-the-fly 4WD systems. If you’ve shifted into 4H you’ll see 4×4 High illuminated in your cluster. Changing the rear differential fluid in a 2015 F-150 with the electronically locking differential. And if you’ve shifted into 2H, 4×2 will be temporarily illuminated. A limited-slip differential and a locking differential are not the same thing. With either 4×4 system you can shift between 2H, 4H, or 4A at a stand still, or at any speed. And 4L mode, which gives you extra power at reduced speed for climbing hills, driving in or going through deep sand, rock crawling, or pulling a boat out of water. Fortunately, it’s a relatively easy problem to troubleshoot.