I am changing my personal change interval to 180,000 km (112,000 miles) for the front diff oil change. Finally, be sure to clean the contaminants off the other housing components of the differentials. Install a new gasket too because the old one will be worn now. Most manufacturers will say to change the fluid at 25,000-mile intervals, while others may recommend 30,000-mile intervals. the diff fluid change schedule is every 20k miles, so you are way over due. There are differentials in every vehicle on the road. This is the same concept as when you need to change your engine oil. There is the potential for expensive vehicle damage from improper servicing procedures. Affiliate Disclosure:  We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. but I'm not sure about other models. i was gonna do my rear ends but then i read my tag that said "limited slip diff fluid only".. I dont want to mess with it until I know I have the right stuff. The transfer case and front/rear differential oils in the LandCruiser 200 should be changed at 40,000km intervals. I did my first at 10 K, break in change. Using a 14mm spanner or socket, remove the vibration dampener from the rear of the transfer case; Remove the clip holding the earth strap from the transfer case guard. There are three basic types of differentials – open, limited-slip and locking. A vehicle's rear differential sends power from the driveshaft to the axles. The differential allows the tires to rotate at different speeds. Generally, most car manufacturers will recommend the fluid get changed after at least 30,000 miles, but some may allow you to go up to 50,000 miles. Hi, I want to change oil in my differentials. But for standard driving, you can change the differential fluid every 24,000 miles for the front and rear differentials. * - The SAF-XJ synthetic fluid replaces the previous factory recommendation of SAF-XLS mineral oil for clutch-type limited-slip differentials. I have a 1996 GM sedan with limited slip diff.. the toyota does not require any limited slip additive it is a open diff with no clutches. DIFFERENTIAL PROBLEMS AND SYMPTOMS: If one of the bearings in your differential becomes loose, or if thin differential fluid is causing metal on metal grinding and untimely wear you might experience the following symptoms: Rear oil was still golden, very little contamination. This includes the estimated labor costs of around $40 to $60 and the estimated parts costs which are from $30 to $70. share or like this page: There are potentially lethal dangers resulting from the vehicle during the procedure. How do I know if my diffs are limited slip? Capacity is around 1.9 litres; Replace the bash plate/cover under the differential. Amsoil Severe Gear 75W90:  This is a fully synthetic gear oil from US manufacturer Amsoil. Clean the fill and drain plugs, including the magnet on the drain plug. Be sure to wear clothes that you won’t mind getting dirty either. Second-guessing the engineers that designed the differential and filling up the case with the wrong gear oil can ultimately add up to an expensive guess. This can be done by taking your car for a quick 10-15 minute drive. The specified oil … Between the front and rear differentials, a total of approximately 6.3 litres of oil is required. Limited Slip oil, which contains friction modifiers to reduce squeal and provide smooth power take up. Can I use 75w-140 oil in Dana 30 and 35 without vari-lok? Front differential, rear differential and limited slip differential (LSD) all require gear oil to lubricate and keep the differential drive components cool. It will be up to you to keep track of how many miles you’ve gone since the fluid was last changed. The following should not be taken as instructions. These need a special. It would do so every 25k, but I towed a camper so YMMV. Remove the fill plug and the drain plug, using a 24mm socket. Experienced home mechanics will find it boring/verbose, newbies like me may find it useful. If you’re going to go the cheap route and try to do the replacement job yourself in order to avoid the labor costs, be prepared to get your hands messy. I also had a limited slip diff on my Wrangler (worked amazingly well off-road, wheeling up slippery rocks). Instead of formulating multiple gear oils of the same viscosity, but different frictional properties to address occasional chatter in limited-slip differentials, you can use a gear-lube additive that alters the fluid’s original frictional properties and eliminates chatter. The front and rear differentials typically use the same type of fluid, unless there is a transaxle built into the front differential. The Toyota LSD-TL gear oil provided by Dealer is only for 2008 and newer per service bulletin T-SB-0118-08 July 25 2008. They produce a suitable fully-synthetic GL-5 oil which comes in US sizes of 1 quart (946ml)  and 1 gallon (3.8L). I just got the basic 80-90W gear oil, about 5 quarts. As for changing the rear differential fluid, the estimated overall cost is a little more at a range of $80 to $150. Only around 1.5 litres of oil is required for a full change. Front oil was essentially like new! It is approx 3.8 Oz - 114 ml. The LandCruiser 200 in Australia runs 'open' differentials front and rear, so there's no requirement to use limited slip oil in the rear diff. In order to avoid this, the manufacturers recommend changing the differential fluid every 50 000-60 000 miles, and in case of intensive “acceleration-braking” driving, the differential fluid change is required every 30 000-40 000 miles. Fluid Levels: Having the proper fluid levels are important to keeping your differential alive. LandCruiser 200 Differential Oil. It's available in 1, 2.5 and 4 litre containers: Redline 75W90 GL-5:  Redline produce a suitable fully-synthetic GL-5 oil which comes in US sizes of 1 quart (946ml)  and 1 gallon (3.79L). I am changing my personal change interval to 120,000 km (75,000 miles) for the rear diff oil change. Nulon Smooth Shift 75W90:  This is a fully-synthetic GL-5 gear oil from Australian company Nulon. Castrol Syntrax Universal Plus 75W90:  Syntax Universal Plus is a fully synthetic, GL-5 gear oil. There are a few more choices in this grade, with the following being suitable: Penrite Pro Gear 75W90:  Progear 75W90 is a fully synthetic gearbox and differential oil from Australian company Penrite. You MUST use the GL-5 version in the 200's differentials. (and How to Bypass It), 5 Symptoms of a Bad Ignition Switch (and Replacement Cost), Curb Weight vs Gross Weight (What’s the Difference?). 6 Causes of Engine Ticking (When Accelerating or Idling), 4 Bent Engine Valve Symptoms (and How to Prevent Them), 25 Reasons a Car Jerks When Accelerating (and Under Other Conditions), What Does a Bad Starter Sound Like? It's not just a 'grease and oil change'. Note that Redline make GL-4 and GL-5 versions of 75W90 oil. Thanks! The following are suitable: Penrite Pro Gear GL-5 75W85:  Progear GL5 is a fully synthetic gearbox and differential oil from Australian company Penrite. You will need a large pan to catch the fluid or gear oil in after you drain it from the differential. No need to add more. The local dealer will charge you a whopping $400 to change these oils, but it's one of the simplest service procedures you'll ever find, and you can do it yourself in under an hour with basic tools and less than $200 worth of premium quality oil. the axles are always in the locked position so If I did not add this additive the diff would chatter on turns . If you have the standard plastic cover/plate, then these are the bolts to remove: Use the icons below to Once again, the owner’s manual of your vehicle is the best place to find the appropriate interval for changing your rear differential fluid. Changed the differential oil on my 2007 STR today and thought I'd make a short guide. I also have D44 LSD, with a slight knock, not like what people are saying in the above thread. The cost of replacing your differential fluid will be more expensive than changing your engine oil. Note that Penrite make GL-4 and GL-5 versions of ProGear 75W85. Do you have any idea how much do I have to use from this additive and how much oil I need. Capacity is around 1.5 litres; Apply loctite to the guard retaining bolts and replace the bolts. There are many additional checks which take place during routine vehicle servicing. Read also: Pros and Cons of Limited Slip Differential. Otherwise, the front differential and rear differential can use the same type of oil if there is no transaxle. Fit new aluminium washers to the drain and fill plugs; Refill the differential with 75W90 GL5-spec oil, until the oil flows from the fill hole. Changing fluid won’t help with the knock, but needs to be done. In that thread some owners were recommending a fluid change at 4K-5K miles to help avoid the failures others were seeing. Hypoid oils have additives to help them cope under extreme pressure, but as limited slip diffs still have hypoid gears in, I would assume limslip oil … The owner’s manual of your vehicle is the best place to learn the exact mileage that you need to travel before the front differential fluid should be changed. Redline full synthetic 75w90 GL5 gear oil for hypoid Limited Slip Differentials has plenty of friction modifier in it. The differentials may even be built into the front and rear ends. I bought a limited slip differential additive (please see it on the picture). The GL-5 spec is quite high, and generally means you'll have to select a fully synthetic oil. You may not be aware of these checks, which could lead to component failures. The LandCruiser 200 in Australia runs 'open'  differentials front and rear, so there's no requirement to use limited slip oil in the rear diff. (just for rear to start with). It's available in 1, 2.5 and 4 litre containers. You MUST use the GL-5 version in the 200's transfer case. A limited slip differential is a device found in the drive axle of an automobile or truck that the axles and ring gear are mounted to. Place a drain pan (at least 5 litres capacity) under the differential. Presumably the n/a 4.2 has the same diff (and possibly the 2.7D?) It is simply a documenting of the procedure I followed for my own servicing and maintenance. Unless you get maintenance done at the dealership where you bought your car, the mechanics are probably not going to tell you when the fluid needs to be changed. Between the front and rear differentials, a total of approximately 6.3 litres of oil is required. Another important consideration when it comes to differential fluid is the requirements of the limited slip, or traction-sensing differential. Capacity is around 4.2 litres. I used to change the diff oil in my Durango with a limited slip diff when it would start binding the rear diff and chirping tires on sharp slow turns. This includes the estimated labor costs of around $40 to $60 and the estimated parts costs which are from $30 to $70. A limited-slip differential (LSD) is a type of differential that allows its two output shafts to rotate at different speeds but limits the maximum difference between the two shafts. Replace the fill plug and tension to 49Nm. Using a 12mm spanner and socket, remove the 8 bolts holding the guard to the transfer case; Remove the fill and drain plugs, and allow all the oil to drain out. Just like an engine, the differentials need lubricating fluid (oil) to keep running smoothly. I called AMSOIL's technical team and they explained that our 75W-90 Severe Gear actually has limited slip friction modifiers already formulated in the gear oil, and that I don't need to add any extra. Refill the differential with 75W85 GL5-spec oil, until the oil flows from the fill hole. I have 1979 Trans Am with a limited slip differential and I want to change the differential oil. It's available in 1, 2.5, 4 and 20 litre containers: Redline gear oil 75W85:  Redline is a specialised US oil manufacturer. Installed 'Castrol 80W-90 (GL-5)', works great now. Pros and Cons of Limited Slip Differential. I called the Redline tech line, they were very knowledgeable and helpful. This will allow the rear differential fluid viscosity to get thinner and flow more easily from the rear differential when drained. … This includes the labor costs between $50 and $70 and the parts costs of around $30 to $80. Differential fluid changes need to be made periodically for both the front and rear differentials. How Long Does It Take To Charge a Car Battery? On the Jeep forum, it states that TJ front and rear differential fluid should be changed every 12,000 miles for heavy driving (off-road). I strongly recommend you have your vehicle serviced regularly by a qualified mechanic. It comes in US sizes of 1 quart (946ml)  and 1 gallon (3.79L). 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. 75W90 GL-5 Gear Oil I changed it every 30k. I’ll probably do,again at 20k. Fit new crush washers to the fill and drain plugs. Your local repair shop will be able to recommend the best oil for your differentials. Remove the bash plate/cover under the differential; Place a drain pan (at least 3 litres capacity) under the differential; Using a 10mm allen wrench, remove the fill and drain plugs; Fit a new copper washer to the drain plug and a new crush washer to the fill plug; Refill the differential with 75W85 GL5-spec oil, until the oil flows from the fill hole. 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