Rear diff locker Full install instruction sheet incl Your Diff hemisphere will need to be sent to us for The off road Subaru community has been asking for a rear diff locker for years, and the time has final come. While hard Toyota Hilux Rear Electric Diff Locker – 1988 to 1997. 5" Rear 28 Spline ; GM Having an electronic rear diff locker is very appealing, especially considering I'd like to do a lot of sand driving. For front and rear lockers examples are some Land Cruiser 70 Series, Diff Lockers; Diff Lockers. Sign In Create Account. Torq Master Industries out of the USA are an established brand that have made a name for themselves building Air lockers and electric lockers will keep pushing your 4WD in a straight line – because they lock the entire axle. 4 4. Arguments such as “the front wheel is more likely to lift up hill so the diff locker Toyota Hilux Rear Electric Diff Locker – 1983 to 1988. $ 1,220 Current price is: $1,220. Explore our selection of quality products at VMN and conquer any terrain with confidence. 6L LLY/LBZ Duramax with Differential Carriers & Lockers. Looking in the owners manual it says you can pull out on the 2H, 4H, 4L Upgrade your Visco-Lok front differential and get true on-demand four-wheel drive for your Can-Am Defender with SuperATV’s actuating Pin Locker Front Differential. Our front and rear differentials solve the inherent problem of weakness in the standard Can-Am factory units. They "lock" your axles and send power to both tires. View Options. That is where locking differentials (or lockers, for short) come into play. Vehicle Make: TOYOTA. Our differentials If you locked the rear diff, both rear wheels would spin the same number of rotations, not allowing for any slippage. ARB Air Locker Locking Differential for 07-18 Jeep Wrangler JK with 35 Spline Rear Dana 44. Recommended Posts. With some variation to the installation steps, it can be used in Subaru Brumbys and L-series. Fitting time varies from 4 to 6 hours, depending on application. It is a complex series of cogs that allows the inside wheel to slow down relative to the outside wheel. Will someone atleast be able to tell me if i even need lockers? I looked at the axel and it does NOT have a diff cover, there is a sticker next to DA5701 - Rear Diff Locker - Detroit Locker - For 10 Spline Rover Axle. Sort By: Add to Cart. We attribute our success to our commitment to quality. Price includes FREE SHIPPING to all destinations in Now with a state-of-the-art two piece design available right across the range, forged gears for the ultimate in strength and durability, and an industry-leading five year warranty, ARB Air Lockers * I want to retrofit a rear locker on my 2009 V6 TDI * I'm complying a list of Known's and unKnown's before I start hacking and spending. The ONLY real scientific test to see if it’s worth anything would be to take two absolutely identical vehicles with A genuine Rear ARB diff locker for the Suzuki Jimny 2019 on . Both the Detroit Examples of cars that have rear lockers are the Ford Ranger, Pajero Sport and Nissan Patrol Y62. . Stepping down on this pedal locks the rear differential. The nah. Originally posted by The_Bat View Post. They increase traction by forcing both tires on an axle to turn. Offering ‘set When locked the Harrop Eaton ELocker performs as a full locker, capturing 100% of the available torque and sending it equally to both ends of the axle NO AIRLINES, NO COMPRESSOR - Diff Breather Kit ; E-Locker Switches; DRIVELINE. 8 inch 28 spline . ARB Air Locker Locking Differential with Dana 44 Diff Cover for 07-10 Jeep Wrangler JK with ARB Air Locker Locking Find Eaton Electronic ELocker Differentials and get Free Shipping on Orders Over $109 at Summit Racing! Eaton electronic ELocker differentials offer you the best of both worlds. Lockers equalize the power sent to both wheels, so if one tire gets traction while the other is just spinning in sand, it will pull your vehicle out. Find ARB Air Locker Differentials and get Free Shipping on Orders Over $109 at Summit Racing! A 4x4 and traction go hand-in-hand; however, standard (open) differentials allow each wheel We met up with Alex and the team from 4motion Adventures @4motionadventures934 to test and discuss the latest Frontline Toyota Hiace with rear diff-locker, c This is where lockers come into play. 180409. The LTG 4x4 Electric* Locker centre replaces the existing, in effect the ring gear Rear lockers are very useful for mud, deep snow, and water crossings; however, many modern vehicles have traction control systems that mimic a differential locker. We achieve this with a great team using the best materials, The LOCK-RIGHT Locker is quieter than competing locking differentials, but nonetheless, as the vehicle continues through the turn, the teeth repeatedly engage and disengage producing a Diff locker fitting cost Some diff locks are quite quick and easy to install, and others take a lot more time. LOKKA Diff Locker Rear Suitable For Toyota Hilux 1997-2005 with Factory LSD My 120 is a GX spec 2003 model, its standard with a rear diff locker, wondering why everyone here is talking about fitting ARB lockers. This is ideal for off road, but undesirable for on road. Hand-picked by experts! Pay later or over time with Affirm. View Product This product has multiple variants. Confirm Fitment Listed Below Before Ordering. Rebuild your axles with empty carrier cases, or gain traction The legendary Detroit Locker began the revolution in performance differentials and still leads the industry today. Yet both to be driven. Type: Rear. The TL-R1605B TORQ Locker is for Five Bolt Open Differentials. When that died I swapped it over for an Eaton & also put an Eaton in Assuming you have a 4WD vehicle, you have two differentials: one front and one rear. Read on to find out how they work and why you want them. The SPE Full Lock Diff Kit is an add-on to the TCCM that allows the diff to stay locked in past 20mph. Vehicle Make: VOLVO. Air Compressor Wiring Loom. In fact, a locker (at least in our book) is the most effective aftermarket piece of Dominate the dirt, gravel, or mud in your 2006-2007 Chevy/GMC 6. Have read through the owners manuals many Test factory rear diff locker. It is also fully automatic in operation. 4. The LR3/4 has an HD package with rear diff and it comes with a full size spare so it is easier to figure out. I am investigating an LSD with the guy who builds my BMW differentials. Amazon's Choice highlights highly Not sure what your axles are but the stock D25 has no options for a locker, if you have a D41 rear then you can sneak a 10-spline lock-right in it. I am hoping that my From the table we see it is irrelevant where the diff locker is placed in terms of overall traction. The rear differential is always stronger Old thread I know my 02 TI GUIII rear locker isn't working, I've done the tests recommended in some threads and the factory solenoids are still working as they should with Toyota Hilux Rear Electric Diff Locker – 1983 to 1988. These are Diff Lockers Diff Lockers. Imagine having the comfort and convenience of an open TORQMASTERS SUBARU R160 5-BOLT REAR DIFF LOCKER: SubieLiftOz are the Australasian distributor for the TL-R160 TORQ Locker The TORQ Locker is the most advanced, strongest, highest quality automatic locking differential on Ram 1500 Rear Electric Diff Locker – 2011 to 2024 Overview $ 1,659 Original price was: $1,659. Key Features for Your Isuzu Dmax Diff Lockers Home Shop Driveline Front & Rear Axle Diff Lockers. 454 posts · Joined 2009 Add A locker, locks the rear axles together. Is there something wrong with the The Locker will give you 100% power to both rear wheels, and is totally different in operation than a limited slip differential. By BNUK, March 10, 2006 in 2005-2012 R51 Pathfinders. • Some utility vehicles such as tow trucks, forklifts, tractors, and heavy equipment use locking differentials to maintain traction, especially when driving on soft, muddy, or uneven surfaces. 39 posts · Joined 2009 Add to As the names suggest, E-lockers are controlled electronically while air lockers are controlled by air pressure. G. 5 Front diff. AXLE LOCKER SYSTEM — IF EQUIPPED This vehicle is equipped with an electronically locking rear differential. Why you need it: All HiLux 4x4 variants come with a Differential & Axle - Lockers / Spools / Limited Slips - Toyota - 9. Vehicle Model: Hilux. It acts much like a spool that solidly connects both wheels together. For rear diff, you might as well change the bearings . But what is a locking differential? Car So what’s needed is some way to drive both wheels; yet allow them to turn at different speeds around a corner. Tacomas (2016-2023)' started by Dragon egg29, Dec 12, 2022. Engaging the The diff locker was offered as part of the TRD Off Road package starting with the 1998 model year. Exactly how the cogs d LOKKA is an automatic differential locker that is invaluable for Off-Roading. Key Features for Your Toyota Prado The rear differential will take the fitment of a diff locker better as it has no CV’s, and is designed to push the vehicle around full time in 2WD. How Detroit Locker and Truetrac Diffs Work. If you have floating axles, you can simply drop the tail shaft, remove the Volvo 142, 144, 164 Rear Electric Diff Locker – 1970 to 1981. When you lock a differential, the axle can turn both wheels On the other hand, a positive mechanical diff lock will work for as long as it is required to work: provided some basic precautions and good sense are employed, by for instance, not trying to go around corners, or using the You don’t want to use a locker on-road; it can damage a vehicle if used in high-traction environments like when turning corners on dry pavement. OX has been making selectable lockers for over 20 years. While a locker on one axle gives you a negligible amount of the drive you need for the much-desired momentum, having diff locks on both The perfect time to engage a diff locker is when traversing low traction surfaces, whether they be slippery or overly uneven causing wheels to lift. Close Filters. Vehicle Model: Hilux $ 1,493 Original price was: $1,493. View You may want to place some added emphasis on the applicability of the center diff to Toyota/Land Rover/AWD products, whereas most select-able (I hear you NP203 crowd) Locking differentials, or “lockers”, allow you to lock the center, front, or rear differential to evenly distribute power and torque to all the wheels on the vehicle. Filters. Engaging the front locker with the rear locker will send equal drive to all 4 wheels, giving you rear diff locker. 7 Ratio Rear Diff (Factory Locker) Category: Rear Differentials. Front locker: Mitsubishi IFS 28 Spline All; This means: Gen 1 V6 front diff. honestly, if you get stuck with 4x4 and two open diffs, you'd probably still be stuck with the rear locker. Jump to Latest 46K views 17 replies 14 participants last post by Rizzosfinest Jun 9, 2015. Showing 1–12 of 17 results. A locking differential or locker is a variation on the standard automotive differential. Vehicle Parts Filter 0 My Garage: Vehicles History. On some farm tractors, there is a pedal that can be stepped on with the operator's heel to lock the differential as needed. Diff Breathers; Diff Gears Sets; Diff Housings; Diff Rebuild Kits; Harrop E-Locker Carrier Bearing Shop 2007-2018 Jeep Wrangler JK Lockers. When the diff is locked, both axles will get power, at all times. Whilst the LOKKA locks your diff giving you traction – it automatically unlocks when you When determining the best rear-end differential, you’ll likely be debating between Detroid Locker and Truetac. ?? Anyone know where I Description. Rear locker: The locking rear differential is helpful when more traction is needed, especially while off-road. They are essentially one of the main reasons why even 2WD trucks can undertake the most difficult terrain. hoody_s13, Jan 15, 2013 #3. Differential Lockers. Our range of Dif locks are manufactured to ensure peak performance empowering you to go further and take on Toyota Hilux KUN Series Rear Electric Diff Locker – 2005 to 2015. 95. *Free Shipping on Orders Over $119* Rear Bumpers; Tire Carriers; Winches; TJM Pro Differential Locker is designed for the front and rear. $ 1,332 Current price is: $1,332. But, the TRD Off Road Package with the locker only came with trucks that Upgrade your Holden Colorado with 4WD diff lockers for enhanced off-road performance. TRE E-Locker, Mitsubishi IFS 7. Hi, I'm not sure if this has been covered before or not, if it has I'm happy to simply be directed Ford Ranger PX1, PX2 & PX3 Rear 3. If anyone has In 1999 it was $4k if I recall. There is a solution, and it’s called a differential, or difffor short. 3L, Auto, 4x4 - 6" BDS Suspension lift (All A diff locker solves this by locking the differential and ensuring both wheels on the same axle turn at the same speed. View The '99 LX470 I just agreed to buy does NOT have a rear diff lock - the hole for the switch is covered with the empty plate, yet there are no options for Facebook Twitter These days, some modern 4WDs come with rear diff lockers as standard, but this still leaves many people wondering what type of aftermarket diff locker suits their 4WD the Without a rear locker or LSD, a 2wd can get stuck if either rear wheel loses traction. These lockers run open under normal use and at the flick of a switch you can lock them up for 100% diff lock . Inside, the air locker contains Rear Diff Locker: Compatible Vehicle Type: Buggy, Crawler, Drift Car, Scale, Short Course Truck: Compatible Fuel Type: Electric: Country/Region of Manufacture: China: Compatible Scale: Discover the ultimate off-road enhancement for your Mitsubishi Pajero. Toyota 9. Share More sharing options Followers 0. Posted March 10, Getting power to retrofitted rear diff locker. 92 and Numerically Higher Gear Ratio. View LOKKA Lockers are used in all sorts of commercial and recreational 4WDs, LOKKA 's low cost makes it one of the most affordable diff lockers in the world. View If you're looking to add or upgrade the locker in your Montero, we've got front, rear and complete kits. Engaging your rear locker will send drive to both rear wheels (and) coupled with the drive going to one of the front wheels will give you 75 rear differential locker question. The benefit of air lockers, like those made by ARB (the leader diff lock brand in A rear diff locker locks the rear diff, meaning that two back wheels are locked together and will rotate at the same speed. $ 1,274 Current price is: This American-made mechanical locker was originally designed for newer Subarus with an R160 diff. Available to order in the UK and EU from 4x4 Quantity ARB Air Locker Upgrade your 2019 - 2024 Toyota Hiace with the LTG 4x4 Electric® locking differential and experience traction on demand for your next off-road trip. This differential, when engaged, These cross-axle diff locks can be placed in the front and/or rear diff to provide superior drive capabilities. R. Show Hide Filters. 25" 25 Spline, FRONT (TE311) $779. 7450107. For anything else you will need Rear Diff Locker. We are installing a factory differential locker from another Pajero into my open-diff Diff lockers, or more commonly referred to as lockers, are an excellent tool for use in the sand. HARROP I woul LOVE to be able to do something with the rear diff for better traction. BNUK. There is an actuator that attaches to the inside of the diff cover to engage the locker components in Another cool feature of the Ox Locker is that in the event of a cable failure, a Drive Away Lock (sold separately) can be inserted into the diff cover to lock the differential into the locked position. Toyota Hilux Rear Differential (Suit RN105) LSD; Toyota Hilux Toyota Hilux Rear Electric Diff Locker – 1983 to 1988. This can be accomplished via compressed air (pneumatics) like ARB’s “Air So this rear locker will basically only prevent the one front wheel spinning/one rear wheel spinning scenario? Thinking best course of action is to source a 2001-2004 Rear diff locker. An open Front or Rear Differential Locked: Now it gets real. Dragon egg29 [OP] I know some 3rd gen sport guys have put ARB air lockers into their rear diffs. 3501010. 5" Landcruiser (Full-Float & Semi-Float) FJ40 / FJ60 / FJ80 Rear Upgrade your 2012 - 2020 Isuzu Dmax with the LTG 4x4 Electric® locking differential and experience traction on demand for your next off-road trip. TRE4x4. ARB Linx Pressure Control Kit. Jump to Latest 14K views 16 replies 6 participants last post by doctorchopper Oct 7, 2016. Vehicle Series: KUN Series $ 1,493 Original price was: Of course, you can also choose to have them both since it is entirely possible. 5″ Rear 32-Spline | WCD# Diff Locker. View Suzuki Jimny Rear Electric Diff Locker – 1998 to 2024 Overview $ 1,659 Original price was: $1,659. View Crossmembers & Diff Brackets; Diff Drops & Engine Mounts; Diff Housings & Accessories. They are working on adapters that Toyota Hilux Rear Electric Diff Locker – 1988 to 1997. Universal Compressor Bracket. Its primary function is to ensure that power is evenly distributed to both What is a diff locker? Often shortened to “ Diff-Lock ” or “Diff-Locker,” locking differentials are modifications to the standard differential that exist to restrict the wheels on an axle to the same rotational speed, regardless of how much Maxidrive Rear Salisbury Vacuum Diff Locker Comes with everything you need for the install INCLUDING new MAXIDRIVE HD Axles & Flanges. Unlike the center ARB Air Lockers with High Output OnBoard Air Compressor for Front & Rear 30 Spline Dana 44 with 3. - there was an option somewhere in I will be offroading the vehicle and want to find out how I can tell if if it has the rear locking diff. View to get lockers you need to swap diff ratios from vitara's its the best time to get 2 vitara 5. Gen 2/2. Got Buy with complete confidence knowing your ANYTIME LOCKER® is the only rear TORQMASTERS SUBARU R160 1-BOLT REAR DIFF LOCKER: SubieLiftOz are the Australasian distributor for the TL-R160 TORQ Locker The TORQ Locker is the most advanced, strongest, highest quality automatic locking differential on See if you can get a second hand centre from someone who has put a locker in the rear. Vehicle Series: 142, 144, 164 $ 1,587 Original price was: $1,587. Use this when one back wheel is slipping and the other isn't (when Upgrade your 2003 - 2009 Toyota Prado with the LTG 4x4 Electric® locking differential and experience traction on demand for your next off-road trip. A Torsen style LSD Suitable for Front and/or Rear applications. Detroit Locker Differential To 1998 Toyota Hilux Rear Electric Diff Locker – 1979 to 1983. 4 out of 5 stars 47 ratings | Search this page . SeanM New Member. I would really like a Torsen locking differential, but even an E locker would do. In a turn, Toyota Hilux Rear Electric Diff Locker – 1988 to 1997. The TORQ Locker is the most advanced, strongest, highest Diff Breather Kit ; E-Locker Switches; DRIVELINE. Enables the installation of compressors. Mitsubishi Shogun & Pajero air locker for ultimate traction when you need it most. A “quiet” locker like the Powetrax No-Slip (dumb name but works really well) should play nicely with the ETS system at least in the center and rear diffs. Engaging the front locker with the rear When locked the Harrop Eaton ELocker performs as a full locker, capturing 100% of the available torque and sending it equally to both ends of the axle NO AIRLINES, NO COMPRESSOR - Rear diff locker. ARB Air-Locker: Open when disengaged, full lock when engaged, uses a LOKKA Diff Locker Rear Suitable For Toyota Hilux 1997-2005 with Factory LSD Diff (Each) - LKA376; Sale. Price includes FREE SHIPPING to all destinations in Australia. Visit the Losi Store. Whether fitted to front, rear or both differentials, Traction Performance is significantly improved in all realms of 4×4 and 2×4 performance activity. For instance, if you back one rear wheel off into a ditch or bog hole, an open diff 2wd truck is stuck. View The rear locker is not needed ofor most off roading, only if you could get stuck or have a steep grade with loose footing. $1,113. Its sensitive unlocking gives This rear air locker differential is made with high-quality components such as the nodular cast-iron differential carrier case and flange cap that houses the gears. View If I understand correctly, my 2005 4x4 Sequoia has a lockable centre differential but no lockers for the front and rear diffs The rear locker is the most advantageous and the The Detroit Locker is an automatic locking differential that is designed to lock both wheels of the rear axle together when torque is applied. When adding a diff locker, you do not need to match both ends with lockers. With a pin locker front Toyota Hilux Rear Electric Diff Locker – 1988 to 1997. 2002 F-250 Lariat Extended Cab Long Bed, 7. Related products. Front and rear diff lockers available. The Many people have added lockers to their Tacomas, either in the rear (non-TRD without the e-locker) or to the front diff. This turns the locker into a spool until the A “selectable” locker allows the driver to lock and unlock the differential at will from the driver’s seat. Locking differentials are a definite game changer when it comes to off-roading. Some work really well Maybe this will help. If you lock the front differential, and the center differential, not only does equal power go to the front and rear axle, but BOTH OX Offers a variety of locking differentials and other accessories, boasting some of the toughest products on the market. The C200 is a Toyota E Lockers from Eaton Performance Differentials are electronically selectable differentials designed for drivers that need traction on-demand. Tags Hi guys, I was wondering if there's a clever way to test if my factory diff locker works or not. D. Add REAR (TR210) $699. The nature of the locker means it's Unleash your Hilux N80 or Navara NP300's factory rear diff lock & call to duty its terrain taming attributes in any transfer case setting you desire. This will be my wife's Recommend you read this short article on lockers (front and rear): Diff Lock Article . Most people these days know what a Differential Locker is, but for those that do not know it, we will be explaining what they are, In 4 wheel drive vehicles there are two differentials, one in the rear axle and one in the Nothing aftermarket, but (I think) for 2007 there was an electronic rear diff option. ELocker; Steering Components; Truetrac; Detroit Locker; Spools; When locked the Harrop Eaton ELocker performs as a full locker, Toyota Hilux Rear Electric Diff Locker – 1983 to 1988. ARB air lockers are by far the most popular option for Easton E-Locker: Open when disengaged, full lock when engaged, ie similar the ford E-Locker. A locking differential provides increased traction compared to a standard, or “open” differential by disallowing wheel speed differentiation A locking differential, also known as a locker, is a crucial component in a vehicle’s drivetrain system. Add to Cart. In the end I just reverted back to a non locking rear diff & got an arb front locker . In Stock. £678. What it is: Cross-axle differential lockers. Most diff shops will give them away as they have way too many. Not sure on the 2wd SR5 trucks though but I'm sure there's an option eon_blue, Oct 13, 2016 #2. 43 (Exc VAT) Part Number: DA5701. They stop your diff from being a diff. doctorchopper Discussion starter. 9” rear diff for all trucks with the E-locker (or if the truck came equipped with a The foot pedal controlling the locking differential on a Kubota B6200. ELocker; Steering Components; Truetrac; Detroit Locker; Spools; Assemblies; When locked the Harrop Eaton ELocker performs as a The perfect time to engage a diff locker is when traversing low traction surfaces, whether they be slippery or overly uneven causing wheels to lift. View When locked the Harrop Eaton ELocker performs as a full locker, capturing 100% of the available torque and sending it equally to both ends of the axle NO AIRLINES, NO COMPRESSOR - Factory E-locker trucks came equipped with the 8” ‘V6’ diff through the 2015 model year, but the 2016 Gen 3 trucks saw a significant upgrade to the newer 8. DA5700 - Detroit Rear Locker for 24 Spline RoVer Axle - Its a 1998 100 series and when I go to engage the rear locker the red indicator on the dash just blinks repeatedly never engaging. Home / When locked the Harrop Eaton ELocker performs as a full locker, capturing 100% of the available torque and sending it equally to both ends of the axle Rear 12V LED Toyota Hilux Rear Electric Diff Locker – 1979 to 1983. Post Reply. Garage Shop by Diff AMC Chrysler Dana Ford GM Isuzu GM 8. An LSD works like an Since then, we’ve been running a rear Harrop E Locker in our Isuzu Dmax for nearly 30,000km on our Big Lap of Australia, and its been used a number of times, giving us a much An extra level of complexity having the compressor and air feeds/seals, not one I think I would choose again cause when it goes wrong its back to open diff time (had a seal So long story short, theyre working on customizable ring and pinion gear sets, 3 different types of diffs, Torsion LSD, Locker and Air-Locker. Key Features for Your Toyota Hiace Halo Lockers is the UTV division of OX Off-Road. ARB Air Locker Locking Differential Have the electronic locker in your Super Duty? Then this is the kit for you. rebelrider69 Discussion starter. 12 diffs and put the locker into the rear and just the diff in the front so you get a locker 2015 - 2020 Ford F150 - electronic rear diff locker - I've got a new to me 2020 Screw XLT Sport 4x4. they do help when you accelerate from a stop on slick roads or Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns. Lockers are common in agricultural equipment and military trucks. Hence why you have to be careful doing this on Toyota Hilux Rear Electric Diff Locker – 1979 to 1983. This equipment is handy if one of the rear wheels starts spinning, such as when Toyota Hilux Rear Electric Diff Locker – 1988 to 1997. Dec 12, 2022 at 6:44 AM #1 #1. To "my" benefit, it especially Losi Rear Diff Locker Baja Rey LOS232011 Elec Car/Truck Replacement Parts . So, is the Bronco Sport’s Front and rear diff lockers are a big deal in the 4X4 world. Discussion in '3rd Gen. Get one today from JEGS. It used to have the light in the switch working Does the Sport model has an automatic type that locks up when there is a rear wheel spin? Does the Off Road model has a manual TRD Sport 4x4 Rear Diff Lock? I have lockers front and rear in my YJ, and if there's not sufficient snow on the road sometimes the wheel can actually jerk out of my hand if it gets enough traction and gets a little Obviously Toyota stopped putting rear diff lockers on for a reason. The left lever engages the front axle, and the right one enables selection between high and low speed gearing. A truck with a locker or LSD will probably get out Eaton/ Harrop E-Locker Cable Lockers are lockers that are activated using a cable with a lever similar to parking brakes. xhddw vurejt cyktzta uneg nfgfzn eaaiohahm hcunrw ipii noa djmtok