What is the rear differential fluid capacity of a 2018 Ram 3500 dually?
The rear differential is a critical component of your 2018 Ram 3500 dually, ensuring that power is distributed evenly to the rear wheels. Proper maintenance, including checking and replacing the differential fluid, is essential for the longevity and performance of your truck. In this article, we’ll explore the rear differential fluid capacity of this heavy-duty vehicle and provide tips for maintaining it.
What Is the Rear Differential Fluid Capacity?
The 2018 Ram 3500 dually, equipped with a dual rear-wheel setup, typically has a rear differential fluid capacity of approximately 4.5 quarts (4.3 liters). However, this can vary slightly depending on the specific axle configuration and whether your truck is equipped with a limited-slip differential or other optional features. Always refer to your owner’s manual or consult a trusted mechanic to confirm the exact capacity for your specific model.
Why Is Rear Differential Fluid Important?
The rear differential fluid serves several critical purposes:
- Lubrication: It reduces friction between the gears and other moving parts, preventing wear and tear.
- Heat Dissipation: It helps to dissipate heat generated by the differential during operation.
- Protection: It protects the internal components from corrosion and contamination.
Maintaining the correct fluid level and quality ensures that your rear differential operates smoothly and efficiently, especially under heavy loads or towing conditions.
How to Check and Replace Rear Differential Fluid
Checking and replacing the rear differential fluid is a straightforward process. Here’s how you can do it:
- Park your truck on a level surface and engage the parking brake.
- Locate the rear differential cover and the fill plug. The fill plug is usually on the side of the differential housing.
- Remove the fill plug using the appropriate tool (usually a ratchet or wrench).
- Check the fluid level. The fluid should be just below the fill hole. If it’s low, add the recommended fluid type until it reaches the correct level.
- If replacing the fluid, remove the drain plug (if available) or the differential cover to drain the old fluid completely.
- Clean the differential housing and replace the gasket or use a sealant if necessary.
- Refill with the recommended fluid type and quantity, ensuring it matches the manufacturer’s specifications.
- Reinstall the fill plug and check for leaks.
Regularly inspecting and replacing the rear differential fluid can prevent costly repairs and keep your truck running smoothly.
Conclusion
For the 2018 Ram 3500 dually, maintaining the rear differential fluid at the correct capacity of approximately 4.5 quarts is essential for optimal performance. Always use the manufacturer-recommended fluid type and follow the proper maintenance schedule. If you’re unsure about performing this task yourself, don’t hesitate to visit a trusted auto repair shop like Kevin’s Autos for professional assistance. Proper care of your rear differential will ensure your truck remains reliable for years to come.
Frequently Asked Questions
What fluid goes in the Ram 3500 transfer case?
What Fluid Does My Dodge or Ram Transfer Case Take?
| Year Range | Model | Recommended Fluid |
|---|---|---|
| 2001-2015 | Dakota (to 11), Durango | ATF+4 |
| 2002-2008 | Ram 1500 | ATF+4 |
| 2002-2012 | Ram 1500 | ATF+4 |
| 2003-2012 | Ram 2500, Ram 3500 | ATF+4 |
What kind of rear differential fluid does a 2017 Ram 3500 take?
Differential Lubricant: Rear
11.5 AA With O LSD Rear 8.9 pints.
What gear oil does a Ram 3500 take?
The correct Ram 3500 transmission fluid can be identified as Mopar 8&9 Speed ATF or equivalent, also known by Chrysler Mopar 68218925AA, 68218925AB, 68339073AA, 668157995AA, or 68157995AB transmission fluid part numbers.
How much fluid does a 2018 Ram 3500 take?
Capacity: 12 quarts (with filter). After filling, start the engine and idle for several minutes.
What is the rear differential fluid capacity of the 2018 Ram 3500 dually?
Differential Lubricant: Rear
Capacity: 11.8 AA Rear 8 pints.
What is the difference between 75W90 and 75W140?
Thus 75W140 has a better viscosity-temperature behaviour. The transmission oil can withstand higher loads. Just because 75W140 is at first sight the more powerful oil, you can't always prefer 75W90. Always refer to the OEM instructions for your vehicle to determine which oil can be used.
How much oil does a Dodge 3500 differential take?
capacity 4.2 liters or 4.4 quarts, or AAM Banjo 12" dia.
How much fluid does a 2019 Ram 2500 differential hold?
Differential Lubricant: Rear
Capacity: 11.5 AA With LSD Rear 8.9 pints.
How much fluid goes in the rear differential?
towing capacity using a rear differential that holds between 3.3 and 3.5 quarts of fluid. This means less lubrication is responsible for protecting gears against increased heat and stress.
How much gear oil does a 2018 Ram 3500 take?
For Automatic Transmission: 66RFE RWD....AP4
| Capacity: | 5.5 quarts Initial Fill. |
|---|---|
| Capacity: | 6 speed 66RFE RWD Total Fill 16.9 quarts. |
