db252
Equinsu Ocha
- Joined
- Jan 1, 2016
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- 44
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- 1,474
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- Location
- Bay Area, CA
- Vehicle(s)
- 16 GT Premium/PP/Nav
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- #1
Ok, couldn't find one searching for our cars so here goes. This just talks about the basics with pics and by no means is a suggestion of what gear oil to use so use whatever you want and modify this plan at your will. For reference, this was done on a 2016 GT PP with the Torsen differential and 15,000 miles on stock fluid.
First suggestion is to make sure the oil is warm to hot just like doing a regular oil change. Also make sure the car is level or slightly higher in the front once jacked up and secured to aid in passive oil draining.
Tools/supplies:
3/8 ratchet
Oil catch container
Hand pump to fill differential with new fluid
Paper towel/rags
Nylon brush to clean both magnetic fill/drain plugs
Some type of liquid measuring container to add what fluid you removed
2 quarts of gear oil. Friction modifier will also be needed if your oil requires it so be sure to include this in your replacement total. Mine does not so no pic.
Process:
Remove top plug by just inserting the 3/8 ratchet in the plug....no socket or extension needed. This will help with venting while draining from the bottom hole. Now remove the bottom plug the same way and catch the oil.
While it's draining everything it can, take this time to clean the drain/fill plugs with a nylon brush or whatever you like. I didn't get a pic with the material that was on it but it was a surprising amount and covered the magnet completely. Here it is as I was working on it. The magnet is strong and doesn't want to let go of the material very easily.
Once you've got it clean to your liking, put one of the plugs back into the bottom drain and torque to 25 lb. ft or 34 Nm which will also apply to the top plug once you put that back in later. This is Ford spec.
As long as the proper amount of fluid was put in to the differential prior to draining, whether it be stock or already replaced before, it is wise to replace only what was drained. Too little will not lubricate properly and too much can overload the system and damage seals. I measured what I took out so that I could put the right amount in. I filled this container 3 times and the last fill produced just over 5 ounces. Ford spec calls for 9mm of space below the fill hole.
This gave me a yield of 53 and change ounces. I rounded up to 54 ounces for my replacement due to the fact some is always left behind in the drainage tray.
Now I have my refill amount and I added this pump to the quart container and these can be found at any auto parts store plus other devices of your choosing.
Now its time to fill the differential. You should have already reinstalled the drain plug in the bottom and just install the other end of the pump hose to the top hole. A quart is 32 ounces so one quart was going in regardless. Pump that in till it's empty and then change to the other and pump the correct amount left over to match the drained amount total.
Once you are finished pumping the fluid in, reinstall the last plug and torque to the same amount as you did with the lower.
That's pretty much it. Just get the car back on the road and do some slow figure eights to get the fluid dispersed and your good to go after checking for any leaks.
Hope this helps whoever is looking for it and if your differential looks slightly different, the process is exactly the same for the most part.
Anything I've missed or you have questions on please ask or comment and I will answer or add to the post. Thanks.
First suggestion is to make sure the oil is warm to hot just like doing a regular oil change. Also make sure the car is level or slightly higher in the front once jacked up and secured to aid in passive oil draining.
Tools/supplies:
3/8 ratchet
Oil catch container
Hand pump to fill differential with new fluid
Paper towel/rags
Nylon brush to clean both magnetic fill/drain plugs
Some type of liquid measuring container to add what fluid you removed
2 quarts of gear oil. Friction modifier will also be needed if your oil requires it so be sure to include this in your replacement total. Mine does not so no pic.
Process:
Remove top plug by just inserting the 3/8 ratchet in the plug....no socket or extension needed. This will help with venting while draining from the bottom hole. Now remove the bottom plug the same way and catch the oil.
While it's draining everything it can, take this time to clean the drain/fill plugs with a nylon brush or whatever you like. I didn't get a pic with the material that was on it but it was a surprising amount and covered the magnet completely. Here it is as I was working on it. The magnet is strong and doesn't want to let go of the material very easily.
Once you've got it clean to your liking, put one of the plugs back into the bottom drain and torque to 25 lb. ft or 34 Nm which will also apply to the top plug once you put that back in later. This is Ford spec.
As long as the proper amount of fluid was put in to the differential prior to draining, whether it be stock or already replaced before, it is wise to replace only what was drained. Too little will not lubricate properly and too much can overload the system and damage seals. I measured what I took out so that I could put the right amount in. I filled this container 3 times and the last fill produced just over 5 ounces. Ford spec calls for 9mm of space below the fill hole.
This gave me a yield of 53 and change ounces. I rounded up to 54 ounces for my replacement due to the fact some is always left behind in the drainage tray.
Now I have my refill amount and I added this pump to the quart container and these can be found at any auto parts store plus other devices of your choosing.
Now its time to fill the differential. You should have already reinstalled the drain plug in the bottom and just install the other end of the pump hose to the top hole. A quart is 32 ounces so one quart was going in regardless. Pump that in till it's empty and then change to the other and pump the correct amount left over to match the drained amount total.
Once you are finished pumping the fluid in, reinstall the last plug and torque to the same amount as you did with the lower.
That's pretty much it. Just get the car back on the road and do some slow figure eights to get the fluid dispersed and your good to go after checking for any leaks.
Hope this helps whoever is looking for it and if your differential looks slightly different, the process is exactly the same for the most part.
Anything I've missed or you have questions on please ask or comment and I will answer or add to the post. Thanks.
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