Oct 30, 2018 · Like any fluid in your vehicle, differential oil will eventually break down and require replacing. Additionally, many auto parts stores either carry or will order replacement front differential parts such as front differential pinion sets, axle shafts, housings and carriers, seals and bearings, gear kits, rings, etc. I am now replacing the front differential cover and I am not quite sure if using the same grade of gear oil is correct or 75w-90? Check from your car manual what oil is recommended for your car. Feb 5, 2017 · Oil: I used Mobil1 75w90 front and rear. With the rear differential fluid, you might only need to change it every 30,000 to 60,000 miles. worked fine. even though Toyota calls for 75w85 in diffs and 75w in the transfer case. The appropriate schedule for your vehicle can be found in the owner’s manual. Dec 27, 2019 · Front Differential Fluid: 2020+ Unknown: Unknown: Rear Differential Fluid: 2020+ Unknown: Unknown: DEF Tank (Diesel Exhaust Fluid) 2020+ 7 gallons or 28 qt: 26. Smaller leaks may produce faint traces of gear oil coming from the differential housing while larger leaks will produce drips and puddles underneath the vehicle. The gears inside the differential slide around coated in a slippery film of oil. If your differential housing has a drain plug, place a catch pan under the housing and undo the drain plug. The most common symptom for a problem with the differential output seal is an oil leak. The oil is usually a light brown or amber color. Front diff. For the differential leak, you will add one oz. Do not put in differential case [9] XY-75W85-QL, WSS-M2C942-A, SAE-75W-85 Synthetic Hypoid Gear Lubricant for the PTU When filling a Limited Slip axle requiring Friction Modifier, always add Friction Modifier first, before filling with the lubricant. Mar 15, 2019 · I changed my rear diff oil today. Quality differential fluid gets sold at many common auto parts stores and specialty stores. If the gear oil runs low or becomes excessively dirty, it can cause the gears to whine or howl as they turn. Jan 29, 2024 · Front Differential Seal. Super easy, the worst part was knocking the old washers loose. Mar 12, 2021 · Differential Fluid Change: How do you check differential fluid levels? Differentials need differential fluid or commonly known as gear oil to lubricate and cool down its internal bearings and gears. Jan 7, 2023 · The front differential fluid is usually replaced every 25,000 to 30,000 miles. There is a thread debating what fluid should be used for the front diff. Jun 6, 2018 · Remove the fill bolt before draining the fluid. Effects of Differential Oil Adjustments: Front Differential: Using thinner oil: Increases steering into corners (off-power) If oil is too thin the steering may become inconsistent, especially it can lose forward traction (and steering) during acceleration out of corners; Using May 3, 2018 · Angle Drive fluid "hub fluid" is what Polaris specifies for the rear differential in his Sportsman 850XP so yes he does need hub fluid if he is going by Polaris specs. The front diff fluid in your Chevrolet should be changed every 60,000 to 70,000 miles if necessary. I think it works ok but probaly not as good as DD fluid. With no gauge and access bolts that are sometimes hidden inside the housing, changing front and rear differential fluid can be confusing. Gear oil is used in the manual transmission, and differential oil is used in the differential. Let the differential fluid drain completely, then replace the plug. Mar 3, 2013 · Selectable Front Drive Axle (8. To check your differential fluid, you need to do the following steps. I used the recommended royal purple 75w-140. In turn, its components begin breaking down and smolder silently. A typical differential contains a variety of gears that must remain lubricated during use. How to Change Honda Rancher 420 Diff Fluid. The required specs in this instance are a GL5 for the diff. Mechanically, it’s nothing more than a series of gears. This Is What Happens If You NEVER CHANGE YOUR FRONT DIFFERENTIAL FLUID!!In this video I drain and replace the front differential fluid in my 1995 GMC Suburba BMW xDrive Front Differential and Transfer Case Fluid BMW Xi and xDrive models use a center transfer case to distribute power to the rear and front axles. a full synthetic is the best, but in an old axle id stick to a good conventional gear oil, otherwise youll end up with seal leaks. I'll update my signature. 16 quart 2003-2010 Dodge Ram 1500 Truck - 4WD 5. When the fluid breaks down or becomes contaminated, performance and longevity may be impacted. Axle Differential (Front)We recommend you use Mopar Gear & Axle Lubricant(SAE 80W-90 Apr 18, 2018 · Diff oil is changed, pretty easy on the 2018 with CVT. 7L V6 model front differential fluid capacity - 1. Sent from my iPhone using Tapatalk Oct 27, 2008 · Front + Rear Differential &&& Transfercase Fluid Change on 05+ Gen 2 Frontier Materials For Differentials: 1 & 3/4 Pints Front Gear Oil (GL-5 Spec 80w-90 Synthetic), 3 & 3/8ths Rear Gear Oil For C200 Differential (GL-5 Spec 70w-90 Synthetic) and 4 and 1/4 Pint For M226’s (GL-5 Spec 75w-140 synthetic), 2 1/8 quarts Transfer-case Lube (Nissan D-Matic, as required by FSM) I used my Amsoil Mar 3, 2013 · Selectable Front Drive Axle (8. toyota didnt use lsd untill 05 but had locking diffs before then that did not take any addative. Shell does not have a magic formula that synthetics are somehow unable to replicate. May 8, 2024 · As the front differential loses oil, it will drip down onto the ground, leaving puddles of oil especially where your car is most often parked. Jan 20, 2023 · Burning Of Differential Fluid. Many require 80W90 gear oil. Mar 25, 2011 · grey will work fine, black is better, i usually just buy the gasket though. Front Diff Leak, Symptoms #1: Oil Leaks From The Front Diff Leak. 6L V-8 gas engine; and a 12-inch ring gear for 3500HD diesel models. When this goes bad, serious problems can occur. Front differential, rear differential and limited slip differential (LSD) all require gear oil to lubricate and keep the differential drive components cool. Kioti list either as acceptable and installs hydro fluid from the factory. The differential fluid is susceptible to external factors after a while of usage, like temperature or chemical reaction. Differential oil and gear oil are two different things. How to change the front differential fluid in your Second Gen Tacoma: Check your Owner's Manual to be sure you purchase the correct fluid and the right quantity. lol just snug them up good, Nov 2, 2022 · 2011 Ram 1500 Truck - 4WD 3. It sits between the axle shaft and the differential housing, preventing differential fluid from leaking out while also keeping dirt and debris from entering the differential itself. Oct 5, 2022 · Front-wheel drive and 4-wheel drive vehicles, on the other hand, feature front differentials as well. To keep the components within your differential lubricated and operational effectively, differential oil or gear oil is added to it. It needs to lubricate the clutches, gears, and bearings in the rear end. Apr 8, 2024 · The frequency of changing your differential fluid will depend on your car type. Polaris DD fluid Rear diff. Do not mix old differential fluid with oil or Apr 1, 2016 · Just did both diffs on a 2005 LLY this weekend and used a small hand pump from NAPA to put the front diff fluid in. 5 liter Rear Differential with a G3 fluid, which is a GL5 70W80 @ $80. How often you should change differential fluid depends on your vehicle, driving conditions and fluid quality. 1 liter or 1. May 8, 2024 · Since the manual transaxle and front differential share the same fluid, you’re changing them both at the same time. 5-inch rear-axle ring gear on all 2500HD models and 3500HD models with the 6. Replace the differential cover or drain plug. Use hypoid gear lubricant SAE 80W or 90W. Jan 13, 2017 · Thank you for asking about your Audi A4. Sep 7, 2010 · I'm doing my first 500 mile service, and I'm changing front and rear diff fluid on my TRX500. Mar 11, 2019 · Those plugs are hard to remove. The differential fluid typically has a reddish color 3 days ago · Identify your vehicle’s front and rear axle types to ensure you select the appropriate fluid. Follow your owner’s manual to know when to change the differential oil. Manual Transmission – If EquippedWe recommend you use Mopar Manual TransmissionLubricant meeting the requirements of FCA Material Stan-dard MS-9224. If you’ve ever changed your car’s engine oil or transmission fluid, you shouldn’t have an issue doing the same thing with your differential’s oil. The differential, or gear box, is the component that is used to translate the rotation of the transmission, usually via a drive shaft, to the drive wheels. The general thumb rule is that after every 50000 miles, you should change your differential fluid. If you're using the right spec/weight for the engine, that's the "or equivalent" part you see printed in the manual there. Over time, though, operating temperatures and wear can cause the fluid to break down. Changing the differential fluid can make your differential much quieter ,and will also extend the life of your differential. 5 rear. Steve Maxwell for Family Handyman The inside wheel spins slower than the outside wheel because it travels a shorter distance around the bend. 25" Axle ) Oct 31, 2021 · Don't know who makes it but this is from GM marketing for the 2020s. Lubricating fluid inside the differential transfers heat away from the gears, helping to preserve the life and performance of your differential. May 7, 2019 · Buy me a coffee if I helped you with this video! https://www. It lubricates gear, clutch packs, bearings, and the ring and pinion gear that move power to the wheel axles from the driveshaft. Changing the final drive and front diff oil in a Honda ATV is an often overlooked maintenance task. 21 non-limited-slip differential (LSD) axle ratio rear end for 2WD use and a 3. Nov 13, 2011 · Here I show you how I check and change the front differential fluid in an 03 Trailblazer. 55 axle ratio rear end. 55 version was included. 5 liter Both take a little over . Differential fluid is found in the axle housing to cool and lubricate the differential. With both, expect to start seeing results after 100-200 miles of driving. 5 liters of each, which is $280 just in gear oil. Sep 26, 2023 · The gears are coated with a film of oil that protects the hardened steel layer on their teeth from friction wear. The 85w90 is GL5 spec and so are some synthetic 75w90 (such as Castrol Syntrax Universal) Sep 6, 2023 · Some of the Warning Indications of a Front Diff Leak are Listed Below. System. When it comes to differential oil, most vehicle manufacturers will recommend that you change the oil at least every Jan 7, 2016 · One of the symptoms most commonly associated with bad or failing differential or gear oil is a noisy transmission or differential. Sep 3, 2015 · For example, in 2005 there was a 3. On models with the rear locking differential use only locking differential fluid part No. I went through the same thing until the John Deere parts guy showed me those codes. Feb 17, 2021 · All-Wheel Drive: On a car with all-wheel drive (AWD), there are three differentials: a center differential located on the drive shaft in the center of the car’s underside, a rear differential on the rear axle and a front differential on the front axle near the engine. using non syn. if theres a problem with me putting it in there i'll just show the dealer it said i could put it in there and if something is messed up then they should fix it Jan 8, 2023 · The degree of the front differential leak determines how risky it is to drive while experiencing it. This differential is responsible for distributing power to your car’s front wheels; without proper lubrication, it can cause serious damage to your engine. 8 quarts of Mobil 1 oil for the rear diff and will do the same in the front and i think the front take 1. However, if you hear a whirring noise from the differential, the damage may already be done. The Front Differential Leaks Oil Apr 27, 2023 · What Is Front Differential Fluid And Its Color? Front differential fluid is oil that helps lubricate your car’s front differential. Apr 21, 2010 · 1999 to 2016 Super Duty - Front Differential oil? - I recently added a mag hytec cover to the sterling 10. and i put 20w50 in the engine and by what the book says to put 5w30, 10w30, 10w40, 20w40, or 20w50 in the engine and the front diff. This is a chain-driven transfer case mounted on the back of the transmission with a driveshaft extending from the front and rear of the housing. Why You Should Keep an Eye on Your Front Differential. Nov 4, 2022 · Differential fluid, also called gear oil, is the fluid that is poured into the rear differential housing. Fill the differential with the correct gear oil to the correct level. Used differential fluid will need to be brought to a certified recycling location. Apr 5, 2022 · I used synthetic on my 2016 Sorento front & rear gear boxes twice. The rear differential service is a little different in the fact that the mechanic or technician will perform a Differential service and fluid flush before putting in the new fluid. Refill with fresh fluid, and lower the vehicle. Their is a note however which states " under severe driving replace every 15,000 miles or 15 months whichever comes first ". Mar 13, 2013 · Front Mopar® Gear and Axle Lubricant 75W-85 For the Rear ELSD, the oil specified is different. Lucas 75w90 full synthetic Engine oil. I picked up three quarts of 75W90 just to play it safe. Aug 11, 2015 · So I was wrong assuming that the PTU and rear diff come as one unit and the Tranny and front diff come as another? For some reason that is what I thought, but looking at the fluid specs it seems like the PTU is it's own unit as well as the rear diff. 25" S4WD Axle) Lubricant GM P/N 89021671 or SAE 80W-90 GL5 Full Time Front Drive Axle (8. The whining or howling is caused by lack of lubrication and may increase in volume as vehicle speed increases. May 17, 2021 · RAM 1500 Front Differential Fluid Change we are changing the diff fluid oil on this pickup truck which is a quick procedure to remove the differential drain Sep 19, 2019 · 2) The clutch-type limited-slip differential. Jan 27, 2020 · RZR joe video makes alot of sense and I WILL NOT use atf this time around. Does changing differential fluid make a difference? Yes. of the product per quart of differential fluid in the system. The car shouldn’t be driven if there has been a large fluid loss that compromises the transmission. Every front or rear axle is filled with a special oil (also called differential fluid, or gear oil) that takes care of this. If you do plan on changing differential fluid yourself, be prepared Dec 22, 2021 · Maintaining a differential is a relatively easy thing to do as a DIY project. Refer to a maintenance schedule to determine the type of differential oil your vehicle needs. Has anyone run this? I just feel weird putting in 10w-30 that's SAE80 rated. Oct 26, 2022 · Those gears require lubrication, which is commonly called differential fluid, gear oil, or gear lube. Some differential gear oils are made of mineral oil, while others are made of synthetic fluid that’s manufactured in a laboratory. I don't think a front diff has gone bad because of either oil. Jan 7, 2016 · Differential oil leaks. This video covers how to change the front axle case oil on the Kubota standard L Series Tractors with 4WD, in particular, the L3301 & L3901, although much of Jun 26, 2012 · In other words it's transmission fluid in the front axle. Jan 23, 2023 · The best place to search for your fluid change intervals, as well as to ensure that you get the proper viscosity, quantity, and kind of gear oil, is in your owner’s handbook. Transfer CaseWe recommend you use Mopar ATF+4 Automatic Trans-mission Fluid. Nov 9, 2010 · 80w-90 in the front and 75w-90 in the rear with a specific additive. Front diff: easy to do flat on the ground. oil is ok. Make it a habit to check its level and for any signs of leaks. The list below includes some of the warning signs of a front differential leak. Jul 23, 2010 · Gear oils have different API ratings, GL3, GL4 GL5 for example. In general, gear oil is gear oil. Sent from my iPhone using Tapatalk These gears all rely on each other and a lubricant called differential fluid to keep the differential transferring power smoothly and seamlessly. Question - Amsoil 10w-30 Motorcycle oil is rated for SAE80 Gear Oil - which is what the owners manual calls for in terms of front and rear diff (SAE80 Gear Oil). 1. Fill plug on top of the RDU. Jan 16, 2024 · We’ve provided a list here of the most popular rear axle housings/differentials and their recommended factory gear oil spec for you to start with. However, changing differential fluid isn’t always as straightforward as changing motor oil. Periodically, the differential gear oil must be checked to be sure there is enough to protect the differential. What is the Differential/Gear Oil all about? Differential oil is a type of oil. If hydro fluid is good for the rear diff then it should be fine for the front. Ps4 5w-50 with a tusk oil filter I got a deal on some tusk oil filters lol Oct 16, 2020 · We recommend Mopar ATF+4 fluid. This gearbox is responsible for the conversion of engine power and its transmission to the wheels, allowing them to turn at varying speeds. Front Differential Fluid Change Tools: 2 ramps, 2 jack stands, floor jack; 8mm hex bit (front fill and check plugs) Oct 9, 2023 · A front differential makes your tires spin at different speeds while your vehicle is turning. It’s essential for lowering heat and friction in the differential, which supports the smooth operation of the gears. AGL is for the transmission. 55 axle ratio rear ends were not limited slip, but if the truck was ordered with the trailer tow group, an LSD 3. The members each have their own ideas. The upgraded driveline includes robust front and rear axles, including an 11. The consensus seems to be that 75w90 is fine up front, even though it is listed as an alternative. A clutch-type limited-slip differential attempts to solve the fatal flaw of the open differential, though it’s not a perfect solution. Yes, the BlueDevil Oil Stop Leak would be able to seal your front differential and valve cover gasket leaks. the front diff is a 10mm allen, the rear has 24mm fill and drain plugs. so i just went ahead and put the 20w50 in the front diff. If the seals dry or wear out, they will leak fluid from the axle shafts. When driving on a firm, dry surface, a limited-slip differential sends equal power to each wheel. Most 3. 16 quart Dec 21, 2021 · Make sure you have a sealable container to catch the old differential fluid as you drain it from the vehicle. The majority of manufacturers advise changing the rear differential fluid every 30-60,000 miles and the front differential fluid every 25,000 to 30,000. The truck has 181,000 on it and both diffs' old fluid were black and the front diff drain plug had quite a bit of metal on it. com/phorunner Support this channel by buying some 4Runner Merch! https://teespri Jan 23, 2023 · The best place to search for your fluid change intervals, as well as to ensure that you get the proper viscosity, quantity, and kind of gear oil, is in your owner’s handbook. Luckily, the average cost of replacing differential fluid is usually around $180. Oct 4, 2007 · Water, contaminants, and heat kill differentials. Went to the dealer to get crush washer and the guy said they use 75w90 in diffs and T-case for tundras. Jul 28, 2023 · A specific type of lubricant called differential fluid is used in the differential, a part of cars that converts engine power to the wheels. I went with 3. Aug 20, 2021 · Differential oil How a Differential Works Here is a summary of how a differential works: The flange is essentially the coupling between the driveshaft coming from the engine and the differential May 23, 2024 · Differential fluid is the oil that is used to lubricate gear boxes in many automobiles. . 25" front . On models with the front locking differential, add 2oz of friction modifier. When this time comes, the job is easy enough to do with so Feb 9, 2023 · Changing the front differential fluid on a 2006 Subaru OutbackDue to factors beyond the control of CharlesAndCars, it cannot guarantee against unauthorized m What is Axle Fluid? Every front or rear axle has oil called differential fluid or gear oil. Pay attention to where the puddles are forming, as oil directly under the front differential indicates that is the source of the leak. The differential is a series of gears that allows your inner and outer wheels to travel slightly different distances when you turn. Fill and check plugs are 8mm, drain is T70. DD fluid, Demand Drive Fluid is for the front Hilliard unit differential. This phenomenon takes a long time, and you find it very hard to notice the change in the oil level with the naked eye. Aug 13, 2020 · Fill the Differential With Correct Gear Oil. Some vehicles will feature a rubber plug, making your job a whole lot easier. A front differential seal plays a vital role in your car’s drivetrain system. You must change your differential oil at regular intervals just like any other oil in your vehicle, such as engine oil. The front differential is a critical component of the drivetrain. 5 liter, so I would need to buy 2x . Recomend: Lucas 85w140 temps above 0 degrees Aug 19, 2011 · Brian and Chris did such a nice job with a Rear Diff How To I've decided to try and make a front diff how to. As with the rear differential, the front differential fluid should only be changed by a licensed mechanic unless you’re comfortable performing this yourself. C = Conventional Axle LS = Limited Slip Axle FF = Full Oct 13, 2019 · This is a tutorial on how to change the front differential fluid on a 2002 - 2009 GMC Envoy, Chevy Trailblazer, Oldsmobile Bravada, Saab 9-7x and Isuzu Ascen Aug 8, 2020 · Your maintenance schedule calls for an "inspection" of the front and rear differential gear oil at 60k miles and then every 30k thereafter. Front axles in the above-listed vehicles built before April 1, 2004 are manufactured with mineral-oil base axle fluid. I've a 2013 Escape SEL AWD. Don't know about the tranny and front diff. Thank you!-BDP Jul 16, 2022 · Where to Buy Front Differential Parts. Feb 27, 2023 · If the differential fluid is low, it can also cause a whirring sound. Used Valvoline 75-140W Full Synthetic in both diffs. Oct 24, 2007 · All the diff fluid I sell is AMSOIL Severe Gear, and it has the additive built in. Differential fluids are available in different varieties, such as gear oil for standard […] 4 days ago · Differential fluid is a vital component in maintaining the health and performance of a vehicle's differential. Running a regular dyno oil and changing it every 50k or every time the diff gets submerged is the best thing for you differentials and it does not cost a fortune. The axle shafts will leak fluid if the seals dry out or wear down. The specific lubricant for the rear axle is just a synthetic fluid to mix with a non synthetic gear oil. A front diff leak is the most prevalent indicator of a problem with the differential output seal. From this difference, the differential gets its name. Because of the 9. Remove the fill plug first, located on the passenger side just behind the rear CV joint flange, to ensure you can refill the differential after you drain it. Mopar® Gear and Axle Lubricant 75W-85 with Modifier However, in my owners manual it says SAE75W-140 with the friction modifier for the front and because mine has the ELSD, 75W-90 (doesn't mention friction modifier) for the rear. As a general rule of thumb, you should check your car's rear differential fluid every 30,000 to 50,000 miles. Limited Slip Differential: If your Jeep Wrangler has a limited slip differential (LSD), you may need to use a fluid that contains a friction modifier or add a friction modifier additive to the gear oil. i dont usually i use the German torque spec on the gover boltstighten them untill there gutantight. Conclusion. 5 May 5, 2008 · the fluid that we put in the diffs and transfer cases at our dealership is 75-90 GL5. or the SAE gear oil alternative. I looked in the maintenance booklet and could not find a definitive change interval for either the front or rear diff's on our cars with the exception of the high performance AMG models. There is a drain screw but the new oil must be installed with the axle shaft removed. 2011 1026R 54"MMM, D120 loader w/snowbucket and bucket quick attach conversion, 5' bush hog, middlebuster, 260 backhoe Which oil in the front diff has been debated in prior posts. Place the container beneath the drain bolt so the fluid will pour into the container once you remove it. Apr 1, 2016 · Just did both diffs on a 2005 LLY this weekend and used a small hand pump from NAPA to put the front diff fluid in. The front diff is a more involved process. The rear differential has standard drain and fill plugs. The exhaust is on the left side, so there is easy access to the fill plug. Most modern cars and SUVs have a front differential built into the transmission (transaxle). Sep 4, 2023 · Simply put, a front differential is the part of a vehicle that splits the power and torque to the front wheels. Bryanccfshr, Aug 17, 2021 #4. Just like engine oil, the differential fluid must be changed at regular intervals. Changing your fluid often will aid in diff life far more then the product selected. If you have factory diff covers (so not aftermarket high capacity covers) 12 quarts will cover you for front and rear diff. It also keeps all Jul 23, 2003 · ya i put the right stuff in the rear diff. 49/ . 6 quarts. An AWD vehicle can apply more power to any wheel, usually the one with Changing your rear differential fluid is fairly straightforward on most vehicles and is an important maintenance item. Fluid type: synthetic 75w90 (GM P/N 12378261, meeting GM Specificati May 20, 2011 · Front Differential with a G2 fluid, which is a GL5 75W85 @ $59. Jan 23, 2023 · Front Differential: The front differential serves the same function as the rear one: it delivers the torque to the front wheels even when they rotate at different speeds while turning. 25" F4WD Axle ) Lubricant SAE 75W-90 Synthetic Axle Lubricant GM P/N 89021677 or equivalent meeting GM Specification 9986115 Front Drive Axle (9. 7L V8 model front differential fluid capacity - 1. Front differentials are located on the vehicle’s front axle. So far, I can't recall anyone finding chatter or the need to add the additional AMSOIL Slip Lock friction modifier additive to this lube. Jan 7, 2015 · Vehicles referenced above that were built after April 1, 2004 were manufactured with front axles containing synthetic axle lubricant and do not need to have the front axle fluid inspected or changed. This is not "hub fluid". Jun 10, 2016 · Figure 3. Step 2 – Change rear differential fluid. The differential fluid lubricates the gears, bearings and other internal parts, and provides cooling to these components as well. Nov 4, 2023 · In a nutshell, a differential gear oil lubricates the part of your differential, and prevents metal-to-metal friction so that the differential won’t overheat. When to Change Differential Oil. 25" Axle ) Aug 18, 2021 · Order some crush washers from Amazon make sure you have the right hex driver for the front diff and its easier than an oil change. Its primary function is to lubricate internal components, which effectively minimizes friction, disperses heat, and provides protection against wear and corrosion Royal Purple 01300 . However, the length of the intervals is different amongst each of the oils. ESP-M2C154-A or it's equivalent, and add 4oz of friction modifier. Cars have a gearbox connecting the two axles. Always refer to the manufacturer's recommendations for specific differential oil additives or limited-slip differential requirements and correct rear differential oil capacity. This is typically recommended to be done every 30,000 to 35,00 miles, and definitely before 50,000 miles. buymeacoffee. 16 quart 2004-2010 Dodge Ram 1500 Truck - 4WD 4. A Honda Rancher 420 takes the same type of fluid on both ends, and you should change those fluids once every two years, regardless of mileage. The fill plug for the front differential, located on the passenger side. Rear diff: fill and drain are 10mm hex. us sd vi mo mm uk ql rc od kd