Request: how to drain and change rear differential fluid

Luigi91 · 03-05-2016, 10:29 AM

Title says it all. Anyone have directions for this either with or without pictures?

Luigi91 · 03-17-2016, 04:06 PM

Bump. Anyone?

rtcat600man · 03-17-2016, 04:49 PM

Not sure about the 6th gen. But very easy to do on the 5th gen. Done mine 3 times. Helped a friend over the weekend doing his.

Key is to open the fill plug first, to make sure you can fill the rear after you drain it.

On the 5th gen, there are two bolts. One fill, one drain.

Good luck.

laynlo15 · 03-19-2016, 06:43 AM

Why are you changing it. I had mine changed at my dealer because it was making noise and there is a bulletin about the fluid that was put in at the factory. Check with your dealer to see if yours falls into the VIN category to have it changed at no charge.

Luigi91 · 03-19-2016, 08:57 AM

Quote:

Originally Posted by laynlo15

Why are you changing it. I had mine changed at my dealer because it was making noise and there is a bulletin about the fluid that was put in at the factory. Check with your dealer to see if yours falls into the VIN category to have it changed at no charge.

I tried. I am having the noise, but the dealer said 'We could not replicate the problem, so we won't do anything'

rtcat600man · 03-19-2016, 02:28 PM

Quote:

Originally Posted by Luigi91

I tried. I am having the noise, but the dealer said 'We could not replicate the problem, so we won't do anything'

Take it to another dealer?

stratt · 03-19-2016, 02:41 PM

Quote:

Originally Posted by Luigi91

I tried. I am having the noise, but the dealer said 'We could not replicate the problem, so we won't do anything'

They have to, there is a Service bulletin For it

Luigi91 · 03-19-2016, 04:48 PM

Quote:

Originally Posted by stratt

They have to, there is a Service bulletin For it

From what I was told by the service department, they say it's not really a service bulletin, but more of just a guide to solving the problem if it's there....

davidbolt · 03-20-2016, 07:00 AM

two plugs on drivers side of diff..one drain..one fill.. easy

drivingagain · 03-23-2016, 04:19 PM

Like David said it is very easy. I did it at 1k miles just for reassurance. If you search the forum some one posted some pictures of the rear diff. There is two plugs. Top is for filling and bottom is for draining. Make sure you get the engines running temperature up first. Not sure on the automatics but for my manual it shows operating transmission temp. I drove home from my office about 30 minutes to make sure the cooler heated the rear diff fluid. When I got home I put my ramps behind the back tires and had my wife watch to see when the car was level. The end of my driveway slopes down to the road. Open the top plug first and then open the bottom plug. This makes sure you can get fluid back in just in case and lets the fluid drain fast. I use some oil drain plug sealant just a little on the plugs. I think it takes just over a qt buy two quarts. I used about half the qt to flush the old out. Then put the bottom plug in and waited until it started to come out of the top plug and put it back in. If you need pictures I could probably do this over the weekend. Although I do not think there is much else to go over.

jorgesvlog · 03-26-2019, 09:27 AM

Quote:

Originally Posted by drivingagain

Like David said it is very easy. I did it at 1k miles just for reassurance. If you search the forum some one posted some pictures of the rear diff. There is two plugs. Top is for filling and bottom is for draining. Make sure you get the engines running temperature up first. Not sure on the automatics but for my manual it shows operating transmission temp. I drove home from my office about 30 minutes to make sure the cooler heated the rear diff fluid. When I got home I put my ramps behind the back tires and had my wife watch to see when the car was level. The end of my driveway slopes down to the road. Open the top plug first and then open the bottom plug. This makes sure you can get fluid back in just in case and lets the fluid drain fast. I use some oil drain plug sealant just a little on the plugs. I think it takes just over a qt buy two quarts. I used about half the qt to flush the old out. Then put the bottom plug in and waited until it started to come out of the top plug and put it back in. If you need pictures I could probably do this over the weekend. Although I do not think there is much else to go over.

So to get this right, you heat up the oil, drain then with drain plug open fill to let some residual drain out? Then plug and keep filling till it starts to drain out of the fill hole?

Vermillion19SS · 05-08-2020, 06:11 AM

Quote:

Originally Posted by jorgesvlog

So to get this right, you heat up the oil, drain then with drain plug open fill to let some residual drain out? Then plug and keep filling till it starts to drain out of the fill hole?

That’s the gist of it. There are a few videos on YouTube that show this process

https://youtu.be/c7Nnwgf34HY

https://youtu.be/3XnZHhY7wvs

2004YZFR1 · 05-08-2020, 08:38 PM

Anyone have the correct GM torque specs for the diff drain and fill plug? I think i've read that it is 20 or 22 foot pounds.

driven2exceSS · 05-08-2020, 08:47 PM

Quote:

Originally Posted by 2004YZFR1

Anyone have the correct GM torque specs for the diff drain and fill plug? I think i've read that it is 20 or 22 foot pounds.

Close... I believe they are actually 24 ft lbs.

03-05-2016, 10:29 AM	#1
Luigi91 Drives: 2016 Camaro 2SS Join Date: Feb 2016 Location: Georgia Posts: 181	Request: how to drain and change rear differential fluid Title says it all. Anyone have directions for this either with or without pictures?

03-17-2016, 04:49 PM	#3
rtcat600man having FUN now 13.66@101 Drives: 2010 2LT IOM Join Date: Nov 2009 Location: Clarkston, Michigan Posts: 9,230 View My Garage	Not sure about the 6th gen. But very easy to do on the 5th gen. Done mine 3 times. Helped a friend over the weekend doing his. Key is to open the fill plug first, to make sure you can fill the rear after you drain it. On the 5th gen, there are two bolts. One fill, one drain. Good luck. __________________ MY BUILD

03-19-2016, 06:43 AM	#4
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	Why are you changing it. I had mine changed at my dealer because it was making noise and there is a bulletin about the fluid that was put in at the factory. Check with your dealer to see if yours falls into the VIN category to have it changed at no charge. __________________ 2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

03-17-2016, 04:06 PM	#2
Luigi91 Drives: 2016 Camaro 2SS Join Date: Feb 2016 Location: Georgia Posts: 181	Bump. Anyone?

03-20-2016, 07:00 AM	#9
davidbolt Drives: 2016 silver ss1 A8 Join Date: Jan 2016 Location: dothan alabama Posts: 93 View My Garage	two plugs on drivers side of diff..one drain..one fill.. easy

03-23-2016, 04:19 PM	#10
drivingagain Drives: 2015 Tiger XCX,2016 Camaro 1SS,LBZ! Join Date: Sep 2015 Location: Palm Coast, FL Posts: 1,311	Like David said it is very easy. I did it at 1k miles just for reassurance. If you search the forum some one posted some pictures of the rear diff. There is two plugs. Top is for filling and bottom is for draining. Make sure you get the engines running temperature up first. Not sure on the automatics but for my manual it shows operating transmission temp. I drove home from my office about 30 minutes to make sure the cooler heated the rear diff fluid. When I got home I put my ramps behind the back tires and had my wife watch to see when the car was level. The end of my driveway slopes down to the road. Open the top plug first and then open the bottom plug. This makes sure you can get fluid back in just in case and lets the fluid drain fast. I use some oil drain plug sealant just a little on the plugs. I think it takes just over a qt buy two quarts. I used about half the qt to flush the old out. Then put the bottom plug in and waited until it started to come out of the top plug and put it back in. If you need pictures I could probably do this over the weekend. Although I do not think there is much else to go over.

05-08-2020, 08:38 PM	#13
2004YZFR1 Drives: 2020 Chevrolet Camaro Coupe 2SS 1LE Join Date: Feb 2020 Location: Nevada Posts: 296 View My Garage	Anyone have the correct GM torque specs for the diff drain and fill plug? I think i've read that it is 20 or 22 foot pounds.

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