how do I get the gear oil into the rear end ? - Jeep Garage - Jeep Forum

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Old 11-20-2016, 06:36 AM
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how do I get the gear oil into the rear end ?

I have a 2001 WJ limited 4.7L with Quadra drive .
regardless of whether I get redline or synthetic 140 and add LSD friction fluid ,

I would like to know how the heck you were supposed to get it into that rear pumpkin .
on mine the fill hole is right up against the gas tank with some type of stabilizer bar a half inch away ...
barely enough room to check the level with a coat hanger wire .
dumbest thing I've ever seen .
how the heck are you supposed to get the oil in there ?

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Old 11-20-2016, 07:14 AM
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Re: how do I get the gear oil into the rear end ?

Not familiar with that particular vehicle, but if you jack it up a bit you might get access. As you jack from under a rail the wheels will probably stay on the ground while the body is raised a couple of inches.


Just a guess.


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Old 11-20-2016, 08:32 AM
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Re: how do I get the gear oil into the rear end ?

Indeed you will need to raise the back of the jeep to change the rear gear fluid. The differential will come down, making it easier to access all cover bolts. To get the fluid in is still not easy. You can use a funnel with a long hose and keep the funnel above one of the rear wheels. Or use a small oil gun, which i did last time, but it will take quite some time to fill it up.
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Old 11-20-2016, 08:38 AM
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Re: how do I get the gear oil into the rear end ?

thanks guys ... sounds like a complete pain in the buttocks ...
but at least it is doable
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Old 11-20-2016, 09:31 AM
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Re: how do I get the gear oil into the rear end ?

What about something like this?

https://www.amazon.com/Plews-55001-L...4RRYFHK6N0SE56


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Old 11-22-2016, 01:11 PM
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Re: how do I get the gear oil into the rear end ?

Quote:
Originally Posted by bill_de View Post
What about something like this?

https://www.amazon.com/Plews-55001-L...4RRYFHK6N0SE56


---
I have this one, which I picked up at Advance Auto locally.

Liquid Transfer/Siphon Hand Pump - Manual Plastic Sucker Pump With Two - 50 x Å“ Inch Hoses - For Gas, Oil, Air, & Other Fluids - Use In Case Of Emergency - By Katzco...: Amazon.in: Car & Motorbike

Turns out it works pretty good for changing oil in the misc yard equipment as well.


A hand oil pump and a bit of plastic tubing from a local hardware store works peachy--if you can get the !#$!# cover off. The small capacity isn't that big a deal as it gives you time to watch and make sure you aren't overfilling.
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Old 11-23-2016, 12:22 AM
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Re: how do I get the gear oil into the rear end ?

Quote:
Originally Posted by bill_de View Post
What about something like this?

https://www.amazon.com/Plews-55001-L...4RRYFHK6N0SE56


---
that's the one I wound up getting.
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Old 03-03-2017, 10:12 PM
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Re: how do I get the gear oil into the rear end ?

Quote:
Originally Posted by bill_de View Post
What about something like this?

https://www.amazon.com/Plews-55001-L...4RRYFHK6N0SE56


---
\

I also recommend using a pump like that whenever transferring fluids like this.

As others pointed out, you will have to jack the back of the jeep way up.

It sounds like a pain when you are rolling around the ground, but when the vehicle is being serviced on a lift it is no problem. Actually, a lot of jobs are easier to get to when a vehicle is on the lift and the suspension is dropped out of the way.

Chris
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Old 03-04-2017, 06:41 AM
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Re: how do I get the gear oil into the rear end ?

I have done this job many, many times with a hand pump to both extract and fill the diffs. But as of late I have graduated to this pump, which I think is fantastic.

Good!! 12V 5A Oil Diesel Fluid Extractor Electric Transfer Scavenge Suction Pump | eBay
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