GS - 3rd Gen (2006-2011) Discussion about the 2006+ model GS300, GS350, GS430, GS450H and GS460

Rear differential service

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Old 10-15-14, 08:43 PM
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Steve2424
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Default Rear differential service

Hello, what is the recommended mile interval to have the rear differential service done? I have a 2008 GS350 awd and was curious if I should do it now, or wait until I hit 60k to have it done?

Also, what does the service entail and has anyone done it and noticed any improvement after doing so?

Thanks!
Old 10-15-14, 09:14 PM
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BinaryJay
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You can look it up in your service schedule, but in terms of just time... I just do it every 3 years or so. You won't notice anything but it's not an expensive service.
Old 10-15-14, 11:45 PM
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Steve2424
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Originally Posted by BinaryJay
You can look it up in your service schedule, but in terms of just time... I just do it every 3 years or so. You won't notice anything but it's not an expensive service.
Thanks. I've read threads where some have done the service around 60k. I'm currently at 52k and doubt the previous owner had it done. Should I get it done prior to that you think?
Old 10-16-14, 04:53 AM
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burny
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60K would be fine. If you can back your car up on ramps and unscrew two bolts the job is a piece of cake.
Old 10-16-14, 06:31 AM
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Steve2424
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Isn't there a particular machine used to do this service though Burny?
Old 10-16-14, 06:35 AM
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BinaryJay
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Originally Posted by Steve2424
Isn't there a particular machine used to do this service though Burny?
You just need some way of pumping new fluid into the fill hole. Car needs to be level. I believe you just pump fluid in and then let it drip out until it stops. But it only cost me $70 to have somebody else get dirty doing it not worth my time and I would say it's a pain to do it yourself because you would have to lift all four corners of the car on axle stands and find somewhere completely level. Front differential was only $30... difference being the rear needs an expensive full synthetic fluid.
Old 10-16-14, 06:44 AM
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Originally Posted by BinaryJay
You just need some way of pumping new fluid into the fill hole. Car needs to be level. I believe you just pump fluid in and then let it drip out until it stops. But it only cost me $70 to have somebody else get dirty doing it not worth my time and I would say it's a pain to do it yourself because you would have to lift all four corners of the car on axle stands and find somewhere completely level. Front differential was only $30... difference being the rear needs an expensive full synthetic fluid.
Gotcha. Ok, thanks guys for the help. I planned to have the rear done at 60k, but looks like I'll do both then. I really want to keep up with maintaining this car well as I intend to keep it for quite a while. I really appreciate the info!
Old 10-16-14, 07:18 AM
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burny
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I just back the car up on ramps and undo fill bolt first and then drain bolt. Fluid comes out in minutes. I buy 2 quarts of Mobile 1 synthetic and a little quart bottle pump and refill after screwing the drain bolt back in with a new crush washer. Fill until trickles out the hole and put bolt back in with new crush washer and you are done. 15-20 minutes and roughly $20 for 2 bottles of 75w-90.
Old 10-16-14, 11:10 AM
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mindcrime
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Originally Posted by BinaryJay
You just need some way of pumping new fluid into the fill hole. Car needs to be level. I believe you just pump fluid in and then let it drip out until it stops. But it only cost me $70 to have somebody else get dirty doing it not worth my time and I would say it's a pain to do it yourself because you would have to lift all four corners of the car on axle stands and find somewhere completely level. Front differential was only $30... difference being the rear needs an expensive full synthetic fluid.
theirs a front diff? didn't know.
Old 10-16-14, 01:09 PM
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easy as pie...

https://www.clublexus.com/forums/gs-...ge-w-pics.html
Old 10-16-14, 09:19 PM
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Originally Posted by mindcrime
theirs a front diff? didn't know.
There is on AWD, not on RWD. Only drive axles need a differential.




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