2009 Jeep Wrangler Front Diff Gear Oil Capsity
Jeep JK Differential Fluid Alter
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Changing the fluid in your Jeep JK front and rear differentials is an of import role of routine maintenance. Fresh gear oil insures your differentials are well lubricated and function properly. And, unlike previous Jeep Wranglers, it is not necessary to remove the differential cover in order to practise this. Information technology is however recommended that you lot do and then anyway from time to time (possibly every other fluid change) every bit it will give you a chance to inspect your gears and catch any damage or unusual wear.
Post-obit "Schedule B" in the Jeep possessor'south transmission (heavy driving), you should change your differential fluids every 15,000 miles. However it is always a good idea to do this IF yous've submerged your axles in deep water for prolonged periods of time. This post will provide instructions on how to perform a Jeep JK differential fluid change that applies to either Dana 30 or Dana 44 axles.
Front Dana 44 differential needs 2.7 pints (one.35 quarts) and the rear needs 4.75 pints (two.375 quarts). If y'all have factory covers, all you need to exercise is fill up upward your differentials until gear oil oozes out of the fill hole. If yous have an later on market differential cover that has a higher make full pigsty than factory, DO Non be tempted to add together any more gear oil than is needed. Doing then will issue in a differential that is over-filled and will crusade gear oil to get pumped out of the sabbatical tube, creating a stinky mess. Gear oil level simply needs to achieve the bottom of your axle tubes.
Annotation: Rear differentials with Trac-Lok (limited slip clutch type differential, non used on the Rubicon), crave the limited slip additive for the clutch plates. Y'all tin can also apply synthetic gear oil every bit it volition have friction modifier in it.
Jeep JK Rubicon requires regular gear oil. The Rubicon uses Tru-Lok which is a mechanical lock to lock the left and right axles together. Tru-Lok does not take clutch plates, and so an additive is not required. In the Rubicon with Tru-Lok differentials, when the rear differential is not locked, the vehicle uses the TCS (Traction Control Organisation) to monitor the corporeality of wheel spin of each of the driven wheels. If wheel spin is detected, brake pressure level is applied to the slipping wheel(s) to provide stability. This characteristic of the TCS organization functions similar to a limited slip differential and controls the bicycle spin across a driven axle. If i bicycle on a driven axle is spinning faster than the other, the organization will apply the brake of the spinning wheel. This will permit more engine torque to be practical to the wheel that is non spinning. This is how the Rubicon gets by without a express slip rear differential.
As with any other fluids, refer to your Jeep owner'south transmission for the recommended gear oil viscosity. I own a 2012 JK Rubicon, with both front and rear Dana 44 axles, and the recommended gear oil is 80W-90.
Differential Fluid Chapters:
Jeep JK Rubicon forepart Dana 44 2.70 pints (1.35 quarts)
Jeep JK Rubicon rear Dana 44 four.75 pints (2.375 quarts)
Not Rubicon front end differential two.10 pints (i.05 quarts)
Non Rubicon rear differential 3.80 pints (1.90 quarts)
Disclaimer: Like I always mention I am not a professional mechanic, I just try to practise every bit much work on my Jeep as possible. It helps me learn more about my vehicle and save some money that can be spent on parts and upgrades.
I accept no responsibility for any injury or breakage which might occur if y'all make up one's mind to follow these steps. You take to make up one's mind if y'all're comfy working on your Jeep. If you lot're not, delight have a professional person complete this project for y'all.
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Parts and tools needed:
i. 4 Quarts of 80W90 Gear Oil (use synthetic IF you have a express skid differential)
2. 3/viii″ Drive Ratchet
iii. three″ Ratchet Extension
4. Oil drain pan
five. 3/8 hex fleck (optional)
half dozen. Brake Cleaner (optional)
7. Funnel (optional)
8. Rubber Gloves
9. Paper Towels
Procedure:
Footstep 1:
Set your tools and get everything set up before yous start the project. Park your Jeep on a level surface, utilize your emergency restriction and put your manual in park or in gear if y'all have a half-dozen-speed manual manual. Brimming the wheels.
Step ii:
Ensure you have proper clearance and room to be able to insert the new gear oil bottle into the fill hole and tilt it upwards. If necessary, you lot tin can jack up the frame of your Jeep and residual it on jack stands, to elevator the track bar and drag link higher, above the differential.
Pace iii:
Locate both the fill bolt and the drain bolt on your differential. Remove make full bolt BEFORE removing the drain bolt. That way you can avoid a situation where you drain all the gear oil and and then find out you have no way to fill the differential with fresh fluid.
Pace 4:
Using the square caput of a 3/8″ Bulldoze ratchet, remove the fill bolt from your differential cover.
Some covers similar Riddler use a fill up commodities that requires use of a three/8 hex flake to remove.
Step 5:
With the fill up commodities removed, yous can proceed to draining the old gear oil.
Step 6:
Place an oil drain pan underneath your differential. Then, using a 3/8″ drive ratchet with a 3″ extension attached to it, remove the bleed bolt from the base of it as shown.
Step 7:
Permit your differential fluid to drain completely before proceeding.
Pace 8:
Your Jeep's drain bolt is magnetic and the within cease of it volition near likely be fuzzy with fine iron filings. Employ a paper towel and some restriction cleaner to wipe the bolt clean. If y'all observe any metallic chunks, you should consider removing the differential cover in order to audit the gears (if you do remove the cover you will demand either RTV Silicone Gasket Maker or Lube Locker Differential Cover Gasket when reinstalling everything back together).
Using a iii/eight″ drive ratchet with a 3″ extension attached to it, reinstall your drain commodities back on to the base of your differential. Tighten this commodities to 25 ft. lbs. of torque.
Step 9:
With the drain bolt installed and tightened, go on to refill your differential with fresh gear oil. Pour in exactly the recommended amount of gear oil. If you still accept stock differential comprehend, you can end once fluid is oozing out of the fill hole.
Using the square head of a iii/8″ Drive ratchet, re-install make full bolt on to the differential cover. Utilise a 3/8″ hex bit if necessary. Tighten the commodities to 25 ft. lbs. of torque.
Step ten:
Follow the same steps with the rear differential.
Ensure you have proper clearance and room to be able to insert the new gear oil bottle into the fill hole and tilt information technology upwards. If necessary, you tin jack upward the frame of your Jeep and residue it on jack stands, to lift the track bar higher, above the differential.
Stride 11:
Locate both the fill bolt and the drain commodities on your differential. Remove fill up bolt Before removing the drain bolt. That way you can avoid a situation where yous drain all the gear oil and then find out you have no way to make full the differential with fresh fluid.
Pace 12:
Using the square caput of a 3/8″ Drive ratchet, remove the fill bolt from your differential encompass.
Some covers like Riddler apply a fill bolt that requires use of a three/8 hex bit to remove.
Step 13:
Place an oil drain pan underneath your differential. Then, using a 3/viii″ drive ratchet with a 3″ extension fastened to it, remove the drain bolt from the base of differential. Let the onetime fluid to drain completely before proceeding.
Use a newspaper towel and some restriction cleaner to wipe the bleed commodities clean. If you find whatever metal chunks, you should consider removing the differential comprehend in order to inspect the gears.
Using a 3/eight″ bulldoze ratchet with a 3″ extension attached to it, reinstall your drain commodities back on to the base of operations of your differential. Tighten this bolt to 25 ft. lbs. of torque.
Step 14:
With the drain bolt installed and tightened, proceed to refill your differential with fresh gear oil. Pour in exactly the recommended amount of gear oil. If you withal have stock differential cover, yous tin can stop once fluid is oozing out of the fill hole.
Using the square head of a 3/8″ Drive ratchet, re-install fill bolt on to the differential cover. Use a 3/8″ hex bit if necessary. Tighten the bolt to 25 ft. lbs. of torque.
Step 15:
Pour the former gear oil into secure containers (use a funnel if necessary) and clean up whatsoever mess. Accept your Jeep for a test drive to a local auto parts store where yous tin dispose of used oil safely and gratis of charge.
If you have whatever questions or suggestions, feel free to comment below.
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2009 Jeep Wrangler Front Diff Gear Oil Capsity UPDATED
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