Electronic locking differential ford f150. Sep 2, 2020 · This in particular is on my 2013 F-150.

2013 Ford F-150 Rear Axle Assembly 9. I was surprised not to see them offered on '18 F-150s. 73 Electronic Locking Axle Ratio - Hi, I'm looking at buying a F150 XLT Sport extended cab and I'm deciding on the axle ratio. Sep 2, 2020 · This in particular is on my 2013 F-150. Electronic Diff. 5L V6 EcoBoost® engine (axle is changed to 3. Lock Your Front Axle at the Flip of a Switch for Awesome Levels of Traction The trusty front 8. 2018 Ford F-150 Rear Axle Assembly 8. This video goes through switching out the Electronic Differential Lock switch on a 2wd F-150 on years 09-14. 4l. 75" ring gear, 6 Lug axles, Heavy duty brake option, Without electric locking differential, Without posi traction, does not include hubs, brakes, backing plates, or axle shafts. I want to change out some main fluids and I had a question about the rear differential fluid. 5L EcoBoost Engine - Electronic Locking Diff Stuck on in Cold Weather - Hello all. I have been following a diagnostic procedure from the 2011-2016 model trucks, trying to pinpoint what is causing my check The electronic locking differential is a device housed in the rear axle that allows both rear wheels to turn at the same speed. There's several hundred dollars difference in the price. 0 ~ 360 Degree Cams ~ Tow Mirrors ~ Bed Utility Package ~ Bucket Seats ~ Oxford White on Baja Tan ~ 1848# Payload ~ from Granger Ford Electronic Locking Differential/Carrier ; 34 spline ; 2011-2017 Ford F150 ; Technical Notes. I do camping and go off Jul 10, 2021 · I have a 2021 F150 Lariat Powerboost 4x2 with 3. 75 RING GEAR, BASE PAYLOAD PACKAGE (6 LUG AXLES), W/ELECTRONIC LOCKING DIFFERENTIAL, 3. You can activate the differential electronically and shift it on the fly within the differential operating speed range. 55 locking axle ratio. 0 electric locking rear 2WD - I have the Ford electric locking rear end. Ford Apr 14, 2011 · Maximum traction at both wheels. Re-gearing the rear axle can help you achieve a lower gear ratio to give you a better crawling gear. 8" 31-Spline IFS axle in your 2009 to 2022 F150 does a pretty good job of taking care of your truck off-road, but it can't pull your truck out or over anything you'll find out in the wilderness, and due to steering issues, limited-slip differentials aren't the greatest idea. Mar 7, 2018 · "The electronic locking differential will not engage if your vehicle speed is above 20 mph (32 km/h) in 4x2 or 4x4 High modes. The system is active at all times and requires no driver interaction. 10 ratio, electronic locking differential; If your F150 doesn't have a sticker for whatever reason, there's also a tag on the rear pumpkin that Nov 7, 2014 · This article applies to the Ford F-150 (2004-2014) and F-250, F-350 Super Duty (2005-2014). 4 out of 5 stars 3 2 offers from $29. 55 gears. 5 twin turbo engine with 3. TIA Tim Jun 24, 2017 · 2017+ Super Duty - Electronic Locking Differential - While reading the manual for my new 2017 F350, I was surprised to see the following: The following conditions will affect the electronic locking differential: • The electronic locking differential will not engage if your vehicle speed is above 20 mph (32 km/h) in Mar 28, 2024 · Many thanks to all the persons who wrote about the pros and cons of open, limited slip, and locking differentials on 4WD and 2WD vehicles. To start off, I have a 2013 3. 15 Ratio, 3. Nov 13, 2019 · 3. . Towing/ Hauling/ Plowing - Electronic-locking rear differential - I own a 2016 F150 4x2 5. Watch this video to learn more about the Electronic Limited-slip Differential. 0 engine while watching some youtube videos i discovered some f150 models come from the factory with and electronic locking diff unfortunately my truck does NOT have it! this is A Ford F-150’s electronic locking differential is located at its rear axle, which allows all wheels on a particular axle to rotate simultaneously. 5' box ~ 3. I assume I should have 12 volts there. Oct 1, 2009 · The 2011 Ford Super Duty trucks will ride down the road with a lot of new ideas in the future that will make them faster and more efficient in many different situations. 55 rear axle they give a choice between an electronic locking axle and a limited slip rear axle. This in particular is on my 2013 F-150. One of the most interesting and innovative changes is an electronic locking rear differential, comparable to the GKN-made e-locker included with the F-150… read more Apr 5, 2022 · 2015 - 2020 Ford F150 - Rear differential - 2018 F-150 Limited 73,000 miles Driving down the interstate the other day and the entire back end went out. 75-Inch Rear E-Locker Differential. 15 non-limited slip axle ratio 3. 8 RING GEAR, 5. • The electronic locking differential will not engage if your vehicle speed is above or 56 mph (90 km/h) in 4X4 Low. The operator can switch between 4H mode without ELD or 4H mode with ELD at speeds up to 30 km/h remanufactured rear differential, with electronic locking differential2018-2020 ford f150 direct oem replacement for perfect fit Remanufactured Ford Axle Assembly 8. Dec 3, 2018 · In this video we illustrate how to identify the different Ford Differentials and which ones require friction modifier to be added to new fluid when servicing Jul 19, 2023 · Buy SOAESCN 2009-2014 Ford F150 4WD Switch Electronic Differential Lock Switch, 4x4 Switch Four Wheel Drive Transfer Case Selector Switch Knob, F150 Override Switch Control, AL3Z14B166BA, 601602, 1S15327: Four Wheel Drive - Amazon. Technical Notes. I unplugged the battery and it didn't help. Our Brands. Over the 4+ years I've had it, I have had no issues other than the timing chain rattle VERY sporadically. 55 Electronic Locking Axle Ratio. Ford F150 Electronic Locking Differential Problems include blown-out fuses and damaged breakers due to loose wires, screws, connectors, plugs, and rusty solenoid. In the last few days, whenever I make a slow sharp turn in either forward or reverse, the inside rear wheel slips. I've used it twice. 73 Ratio with E-LOCKER | US Powertrain May 13, 2016 · 2015 - 2020 Ford F150 - 2016 F-150 5. 55 or 3. Do I Dec 16, 2018 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Nov 11, 2021 · How To lock a rear differential on a 2019 Ford F150 XLT. You can activate the differential electronically and shift it on the fly within the operating speed range. 55 Ratio E-LOCKER | US Powertrain Feb 22, 2017 · 2015 - 2020 Ford F150 - Advice for using E Locking Differential - My experience using a 4x4 is relatively limited and I don't understand when it would be beneficial to use the electronic locking differential (ELD). Some 2024 Model Year four-wheel-drive examples include, in no particular order: Jul 12, 2023 · 2015 - 2020 F150 - E-Locker install on 2016 F-150 - Hello, My truck did not come with a factory electronic rear locking differential. ) I used to have a 1990 Ford Van that had a 4x4 Feb 18, 2015 · 2009-2014 Ford F-150 4x4 4WD E-Locker Override Control Switch Knob OEM NEW ; 4x4 Control Switch Knob ; 2009-2014 Ford F-150-Normally Installed On SVT Raptor Models and Other Similar Trims-For Vehicles With Electronic Locking Differential-With Hill Descent Control-With Electric Transfer Case ; AL3Z-14B166-BA ; Ford Lincoln Mercury Genuine OEM Parts Feb 11, 2019 · 2015 - 2020 Ford F150 - Horrible noise from locking rear differential. The electronic locking differential provides additional traction should your vehicle become stuck. 7 2016 XL Sport w/towing package. I found this link on youtube Feb 15, 2022 · 2017+ Super Duty - Diagnosing "Check Locking Differential" Message - Hoping someone can help me out with this one. The ELocker works like this: while driving under normal conditions, it performs just like an open differential. Aug 21, 2017 · General F150 Discussion - 2012 FX4 Electronic locking differential problems - The ELD light is coming on the dash and the switch is in the off position. Part #: Ford F-150 2012 - 2014; Lincoln Mark LT 2012 - 2014 . 0L, Without ELECTRONIC LOCKING DIFFERENTIAL; 3. I was asking myself what the point of this was and am writing this to see if anybody can answer it for me because I am sure Ford does have a reason for it. 31 Electronic-locking rear-axle with 5. USA region. 5L EB SCREW, 4x4 with Offroad package. 73 ratios. Learn More . However, I just want to make sure I understand the difference between LS and ELD. 55 rear differential, because I won't haul The Eaton ELocker is an electronic, selectable differential designed for drivers that need traction on-demand. Nov 24, 2020 · 2021+ Ford F150 - Locking differential on a 4x2 XLT - I have a question about the availability of the rear locking differential. Dec 17, 2018 · 2015 - 2020 Ford F150 - Adding E-Locker to 2016 - Anybody have an idea how expensive it would be to add the factory elec locking rear differential to my 2016 screw 4x4 f150, currently 3. I thought I would post a new one with the wording straight from the 2012 owners guide. May 23, 2023 · Current F150 #1: 2022 Lariat 500A ~ 4x4 SuperCab ~ 6. If I am on The electronic locking differential is a device housed in the rear axle that allows both rear wheels to turn at the same speed. I would Aug 24, 2019 · 6. 8" With Coil Assembly ; Technical Notes. 73; Ford 9. - 2018 F150 - Has anyone else experienced a horrible chattering/vibration/noise when using the electronic locking rear diff? I’ve attached a video demonstrating the noise my truck is making. An electronic locking differential is an automatic gadget present in the back shaft that spins the wheels of the Ford F150 with the same momentum. fluid. To start with, you should get a replacement switch – you can find those on eBay or Amazon. I am planning to replace diff cover and need to order oil. It would've been handy to have operational this summer Oct 26, 2020 · My old F150 had a mechanical locking rear differential, it was reliable, worked perfectly, I could count on the both rears locking in with just a little slip, on surfaces like ice, I never even noticed slip they just both kick in. 31. 7L Power Stroke Diesel - Electronic Locking Rear Differential Question - I test drove the 3. 0L I have had a LS differential on my past 2 trucks and they The available Electronic Limited-slip Differential (eLSD) system directs torque, enabling the vehicle to drive over terrain and road conditions that a conventional axle cannot. The discussions were an awesome help as I plan to replace my old 2WD F150 having open differential with a newer model 2WD possibly equipped with the 3. 73 Electronic-locking differential if ordered with Heavy-Duty Payload Package) L5: 3. switch. Jul 31, 2011 · 2009 - 2014 F150 - Limited Slip vs. Checked for power at the plug at the differential and I have none. A stuck vehicle can benefit from electronic locking differentials for additional traction. Oct 8, 2014 · Step 4 - Re-gearing the rear axle. 7L Power Stroke Diesel - Diagnosing Electronic locking differential - 2016 F250, Bought the truck last month and when you pull the knob to use the electronic locking differential it says check differential. Jul 28, 2019 · Towing/ Hauling/ Plowing - Electronic-locking rear differential - I own a 2016 F150 4x2 5. The electronic locking differential is for use in mud, rocks, sand, or any off-road condition where you need maximum traction. 15 electronic locking axle ratio 3. Truck has run great in all sorts of conditions. 125 for customer service, availability and technical assistance*** PRICE Nov 14, 2014 · 2009 - 2014 Ford F150 - Locking diff stuck "ON" - I have a 2012 Screw, my 4x4/ELD switch is apparently broken, and the ELD is stuck turned on. 55 Ratio E-Locker | US Powertrain Apr 21, 2024 · The Ford F150 electronic locking differential switch replacement process isn’t too hard- it’s best to get it done ASAP, even if you can drive. 5' SCrew with the MaxTow package. It has 502A + the tow package. 75" ring gear, Base payload package (6 lug axles), Without electronic locking differential; 3. If I sometimes pull a boat, do I need the max tow package? Aug 21, 2013 · The ELD system, which is optional on Electronic Shift-On-The-Fly (ESOF) equipped vehicles, allows the operator to lock the rear differential side gears when in 4H or 4L mode. I unplugged the switch from behind, and it's still stuck on. Genuine Ford Part Excellent Condition 30K Miles 1-Year Warranty Located at Birmingham, Alabama 35207 More Details Jul 9, 2016 · 1999 to 2016 Super Duty - Electronic diff won't unlock - Hi, I'm new to the site but have been lurking around for years, But I have a 2011 F250 powerstroke and it has the electronic locking differential option, I engaged the locker the other night and it will not unlock now. Sep 12, 2019 · 2015 - 2020 Ford F150 - Is the Optional Electronic Locking Differential also Conventional Limited Slip? - Two reasons I wonder: 1. Feb 11, 2020 · Just wondering but does the newer F-150's with electronic locking diffs require a "friction modifier' added when changing the fluid? I know on the my old 98 F-150 with limited slip that I had to add a "fiction modifier" when I changed the diff. Shop Parts. I'd like to order a 2021 XLT with the 55A trailer tow package, not the 55C max tow package. 31 ratio Eaton ELocker – The Electric Locking Differential We stock ELockers for GM, Ford, Dodge, Toyota, Lexus and More. Which one would be better for towing? Would one give better gas mileage? Mar 24, 2015 · 2015 - 2020 Ford F150 - How to confirm truck has Electronic Locking Differential? - I read in the owner's manual that you pull the 4wd knob towards you. 7 ecoboost engine and the 3. May 12, 2011 · For your 2009 Ford F150, we recommend the following Royal Purple products: Diff, Front: Royal Purple Max Gear 75W90 (Part #01300 quart bottle) 1. Cost-effective. 8" ring gear, with electronic locking differential, does not include hubs, brakes, backing plates, or axle shafts. Would also prefer the 2. A crawling gear may be a little extreme for most drivers, but overall a lower ratio allows you to put more power to the rear tires with them spinning slower allowing you to maintain better traction. I notice that on the 3. 55 Ratio, 3. Providing traction to the wheel in contact with the ground could spell the difference between your F-150 being stuck or moving for The electronic locking differential is a device housed in the rear axle that allows both rear wheels to turn at the same speed. I ordered the 3. 7L engine. I cannot find any information on replacing it online! After talking The electronic locking differential is a device housed in the rear axle that allows both rear wheels to turn at the same speed. Any ideas what might have changed or gone wrong? Thanks very much. 15 ratio, electronic locking differential; L3: 3. com FREE DELIVERY possible on eligible purchases Apr 24, 2024 · NEW OEM 2011-2020 Ford F150 Rear Axle Wiring Sleeve AU5Z14489AAA. The Eaton ELocker is an electronically actuated locking differential that allows the driver to switch from a fully open differential to a 100% locked unit at the flip of a switch. That is, why would they feel the need to specify that the standard axle is an Open Sep 26, 2019 · Hello, if it is the electronic locking differential, it should only lock both rear axles hen the coil is energized, unless something is mechanically locked up in the rear differential. 55 ratio, electronic locking differential; L6: 3. Mar 19, 2024 · 2009 - 2014 Ford F150 - Electronic locking differential 2012 - There are other threads about this but they refer to certain models etc. When i engage the knob, a message appears on my screen 'Check locking diff or something similar to that. LDS is different from ELD (electronic locking differential), since with ELD, the differential is locked, meaning no tire slip at all (like a quad), so it has to be used in ice, mud, heavy snow, and such conditions that allow the outer wheel to slip, or your truck would make a horrible noise. Is there a dash indicator light that goes on? The reason I ask is I ordered the truck with the 3. 0L V8 engine or 3. 2017 F250 Build Date 10/2017 with the FX4 package and Electronic Locking Diff. I have a 2009 F150 Lariat 4x4 with the 5. Got it towed to the ford dealership near me and they told me $4,500 to completely rebuild the entire rear end. 3. Genuine Ford Part Good Condition 82K Miles 1-Year Warranty Located at Columbia, South Carolina 29334 More Details Jun 1, 2019 · 2wd is actually 1 wheel drive unless it has a locking differential, 4wd is actually 2 wheel drive unless it has a rear locking differential then it becomes a 3wd. One option is to install original ford locking electric differential. 31 ratio, electronic locking differential; L9: 3. 73 gears open diff. I would like to have installed an original ford locking electric differential and dash button/control. My truck did not come with a factory electronic rear locking differential. Id also like to know what are the chances this could end up in the gears when I drive my truck? Sep 28, 2021 · 2009 - 2014 Ford F150 - 2013 F150 Electronic Rear Locking Diff - Alrighty I've had this pickup for almost 4 years and the locking rear diff has never worked. Product: Rear Axle Assembly: Fits: 2013 Ford F-150 9. At the flip of a dash switch, drivers can go from open to 100-percent locked. Why does Ford spell out on the Build & Price page, the standard differential as Non-Limited Slip . I tried engaging it and then disengaging it which worked for couple days but not anymore. I would like to upgrade my truck and install one. 31/3. 73 Ratio, Electronic Locking Differential Nov 29, 2011 · 2009 - 2014 Ford F150 - Electronic locking differential 2012 - There are other threads about this but they refer to certain models etc. 5L Ecoboost. I tlooks like Ford monitors this site and has made changes to keep up with the most popular mods Jul 3, 2018 · They're called LSDs, or Limited Slip Differentials. 2018 F150 rear diff noise On a a side note. 55 electronic locking axle ratio Why would I choose one ratio over the other? What difference does it make? I chose max tow package and saw that it had the 3. 31 RATIO. Remanufactured Rear Differential, with Electronic Locking Differential2009-2011 Ford F150 Direct OEM Replacement for Perfect Fit Remanufactured Ford 2009-2011 F150 9. Nov 26, 2023 · 2015 - 2020 Ford F150 - Electronic rear locking differential - Hello, I have a question that I can’t seem to find a answer to,I have a F150 2WD 2. Mar 29, 2011 · If I choose the electronic lockingthe Off Road package is preselected. The electrical connector is broken inside the differential and I'm looking for ideas on how to fix. Can someone elaborate on this electronic May 16, 2017 · 1999 to 2016 Super Duty - Friction modifier for Electronic Locking Diff? - Good morning, I have read my owner's manual for a 2016 F-250 Lariat and it doesn't identify a LS friction modifier for the electronic locking rear diff in list of fluids needed. 55 with the e-locking rear end and wasn't very impressed at all. ELD operation is requested by pulling out on the MSS when in 4H or 4L mode. 75" 3. First of all, I'm towing a 4500lbs boat up a steep ramp that is right down the road from my house so I tow less than 25 miles a year probably. Anyone had a similar problem or got any advice. Ford 8. electronic locking differential - black. Its average cost is approximately $1400 to $1800. but I also know a lot of things have changed since then too. 2011 Ford F-150 F X 4 5. Warranty Information. (Yes, I'm sure it's Max. Fuse Shop in the parts listing - 2018 Ford F-150 Components - Rear Axle Differential & Carrier. 21 or 3. (See my signature for what my new F150 came with. 15 RATIO. I tlooks like Ford monitors this site and has made changes to keep up with the most popular mods Electronic Locking Differential – Troubleshooting - Electronic Locking Differential – Information Messages - Raptor This view of the Owner's Manual contains the very latest information, which may vary slightly from the printed Owner's Manual originally provided with your vehicle. There are various features of the E-locking of the Ford F-150, due to which automakers usually preferable to install it. Locks the rear axle completely, Fully integrated with AdvanceTrac with RSC, Excellent control on- and off-road, Driver-actua Jun 12, 2022 · 2021+ Ford F150 - Electronic Locking Rear Differential - I'm looking for opinions on the electronic locking rear diff in 3. 8 quarts. Feb 8, 2024 · Vehicles equipped with factory-installed locking differentials vary across manufacturers, models, and even trim levels. Aug 31, 2023 · I have a 2012 ford f150 ecoboost 4 wheel drive with an electronic locking differential. NEW OEM 11-24 Ford Rear Axle Electronic Locking Differential Connector Plug. Ford F-150 (2015 2009 - 2014 Ford F150 - Electronic Locking vs. Electronic Locking - I recently ordered a 2022 F150 4x4 with the 3. Ratio: 3. Oct 9, 2014 · 3. 5 EB ~ Max Tow ~ Co-Pilot 360 Assist 2. Oct 14, 2021 · 2021+ Ford F150 - 2022 F150 4x4 Rear Axle Selection Regular vs. It should also still be under warranty depending on the mileage with it being a 2018 model year pick up. If I understand correctly, LS is May 11, 2018 · 2015 - 2020 Ford F150 - Guide to 4x4, open and locked diffs, and Traction Control - Hey all, I wanted to create a little write-up on how 4x4 works, how open diffs and locked diffs work, and what Traction Control does. 125 for customer service, availability and technical assistance. 55 electronic locking differential paired with 2. Includes: • 3. The rear differential is located within the rear axle and is the final step for power to reach the rear wheels. Note: The electronic locking differential can activate or deactivate automatically based on speed, four-wheel drive mode, and drive mode selection. 55/3. A new Jan 1, 2017 · The FX4 Off-Road Package is available on F-150 XL, XLT, LARIAT, King Ranch®, and Platinum (4x4 only). Not sure if they make a locking diff for the front to make a true 4wd except for all wheel drive applications, had a 97 Aerostar with AWD, you lose one drive shaft and it's now a no Jun 2, 2015 · 2009 - 2014 Ford F150 - Electronic Locking Differential Connector "Broken" - I have an 2013 STX 4x4 and the electronic locking differential wiring connector that's attached to the differential is broken (Broken part is still in the mating connector). My question is Can I expect the wiring harness to connect 2009 - 2014 Ford F150 - Electronic locking differential 2012 - There are other threads about this but they refer to certain models etc. Remanufactured Rear Differential, With Electronic Locking Differential2015-2017 Ford F150 Direct OEM Replacement for Perfect Fit Remanufactured 2015-2017 Ford F150 9. Apr 2, 2020 · Maintenance Shop - Rear Differential Fluid Change - Hello All, I own a 2016 F150 XLT Supercrew with a 3. Jul 14, 2015 · 2015 - 2020 Ford F150 - Electronic Locking Rear Axle - About to order my new Lariat and on the fence on the FX4 package. Limited Slip Rear Axle - Looking at ordering a 2014. Electronic Locking Differential - I'm trying to decide among 4x4, LS, or ELD. My '19 has the electronic locker, I have to say I prefer the mechanical locker instead. E-lock costs depend on various factors like the model and manufacturer of the Ford F-150 pickup truck. 29 Increased Traction. Features of Ford F150 E-lock System. My truck was not coming with factory rear locking differential. OEM Select Parts Apr 30, 2014 · 2009 - 2014 Ford F150 - Electronic Locking Differential - Recently i have purchased a new to me 2011 SCREW 4x4 XLT with the 5. The electronic locking differential can provide additional traction should your vehicle become stuck. Remanufactured rear differential. • The electronic locking differential may not engage if you press your accelerator pedal during an Jun 21, 2022 · X AUTOHAUX 4WD Electronic Locking Differential Switch Fit for Ford F-150 4x4 4WD 2009-2014 Replace 9L3Z14B166AA 9L3Z-14B166-AA E-Locker Override Control Switch Knob 3. Diff, Rear: Royal Purple Max Gear 75W140 (Part #01301 quart bottle) 2. 6. I'm concerned that the sales guy might have been misinformed with some information he gave me regarding the axle selections. I would like to upgrade my truck and have one installed. Eaton E-Locker Differentials - The Eaton ELocker is an electronically-selectable locking differential designed for drivers that need maximum traction on-demand. Both times while accelerating under load, the rear feels like it jumps, slips and then engages. ) It includes an electronic-locking rear differential. 75 quarts. I tlooks like Ford monitors this site and has made changes to keep up with the most popular mods Electronic Locking Differential/Carrier ; For 2015 and Up Ford 8. I am planning on changing my rear differential fluid and was wondering if i used Mobil 1 75-140W Jul 13, 2017 · General F150 Discussion - 3. Do you consider the locking diff a necessity as opposed to the non-locking diff's when ordering your F150 4WD? Oct 27, 2021 · 2015 - 2020 Ford F150 - Install Ford e-locker - Hi, I have a F150 2019 XLT. Obviously 4x4 or 2WD is a choice on its own, and I'll need to make that decision. 8" 2018-2020 F150 3. ***Call Zumbrota Bearing and Gear at 1-800-658-2537 ext. With electronic differential lock. 55 Electronic Lock Rear axle (shown on sticker) yet ETIS shows Less The electronic locking differential is a device housed in the rear axle that allows both rear wheels to turn at the same speed. 73 ratio, electronic locking differential; L4: 4. 31 ratio regular axle. May 30, 2016 · 2009 - 2014 Ford F150 - rear differential question - Hey everyone, I have been lurking here for a long time and i truly appreciate everyone's willingness to help people out. Some demanding off-road situations can raise a rear wheel off the ground and require increased traction on the other wheel, and this can be facilitated by this 34-Spline Motive Gear 9. tl dy jp dz ag ah rj cr wu fa