DIY - Transmission / Diff Fluid Change Reference Guide - Page 13 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Ultramaroon · 03-30-2015, 11:32 PM

Quote:

Originally Posted by tazz786

so the slight vibration is normal? i dont use my car for the track just a daily driver..i feel it when im pulling my car out of the driveway

Yup. Perfectly normal. When the engine is applying torque to accelerate, the rear wheels resist rotating at different speeds, hence the term "limited slip."

When operating at steady speed or coasting, it behaves just like an open diff.

This is my first car with one. I got a big shit-eating grin when I first noticed it because it feels just like my brother's 911.

Jhood · 05-05-2015, 12:06 PM

Finally changed mine out, dealership told me with a straight face "oh the BRZ is supposed to feel that way when shifting, it's notoriously notchy.. it's a brand new car I can assure you that it doesn't have any metal flakes in it already." I think I might send these over.

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DoomsdayJesus · 06-12-2015, 06:20 PM

For reference, here are my drain plugs at 7400 miles. Pretty dirty for a break in. Guy next to me with a ZL1 Camaro was pretty shocked, but said every manufacturer is different. Hope so.

Sent from my SCH-I545 using Tapatalk

DoomsdayJesus · 06-12-2015, 06:21 PM

Whoops forgot to attach the photos.

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DarkSunrise · 06-17-2015, 02:34 PM

Thanks for the writeup! Changed out my diff and transmission fluid using Motul 300. My transmission took 2.3 L and my rear differential took 1.1 L.

The new fluid feels thinner. I get more sensation through the shifter. Also makes the transmission less notchy when cold. When warm, it's not too much of a difference and I still get an occasional grind into 3rd/5th.

Haven't noticed a difference with the rear diff fluid, but will see after my next track day.

AlexTheGreek · 07-11-2015, 01:38 PM

Ordered 4x Motul 300 75w90 from NoLimitMotorsport. Came with the rear diff crush washers!!! Thx LJ. (Also 2x cuzies and 2x parachute men lol)

Here is what the drain bolt looked like. Car is 35k mi.
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Here is what the tranny drain bolt looked like:
Attachment 115053

I reused the washers. Flipped them.

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Khyron686 · 09-07-2015, 06:08 PM

30,000 kms, did both trans and diff (motul for diff, pentosin for trans) - worked great thanks to the excellent walk-thru. My plugs looked like the ones above - full of crud.

Toyarzee · 10-06-2015, 05:03 PM

Is someone able to explain or post a pic of filling Trans from above car instead of while underneath? I assume you don't drop the fill hose through the body somewhere and just rely on gravity over any incline in hose angle to fill hole?

I usually pull shifter assembly for filling up tranny in my other car lol. Eff those nozzle deals...

Thx

aegisdrgn · 10-06-2015, 05:32 PM

Quote:

Originally Posted by Toyarzee

Is someone able to explain or post a pic of filling Trans from above car instead of while underneath? I assume you don't drop the fill hose through the body somewhere and just rely on gravity over any incline in hose angle to fill hole?

I usually pull shifter assembly for filling up tranny in my other car lol. Eff those nozzle deals...

Thx

If your hose is long enough, as long as the source (bottle) is higher than the destination (fill hole) gravity will do its job.

StinkyLinky8 · 10-08-2015, 11:53 AM

Does anyone know where I can pick up (prefer to order online) the crush washers needed for this job?

Maybe some part numbers? I'm hoping I could just pick them up from the Napa around the corner but prefer to have a part number on hand.

Also, is there any difference between the Oil pan crush washer/Trans/Diff crush washers?

Toyarzee · 10-08-2015, 12:07 PM

Yes they are different and part numbers listed earlier in this thread

scionfr_s · 11-05-2015, 05:16 PM

So for an auto tran, u need 7.5L of ATF and 1.2L of differential fluid?

Mikeez · 11-13-2015, 06:39 PM

Can't I use Allen key instead of the hex bit socket??

aegisdrgn · 11-13-2015, 06:56 PM

Quote:

Originally Posted by Mikeez

Can't I use Allen key instead of the hex bit socket??

Of course you can use Allen keys to loosen it, if you have the confidence in breaking those bolts loose with stubby Allen keys. But to tighten it, unless your hand and arm is an biological torque wrench, kinda hard to tighten to proper torque specs.

Do it right, with the right tools so you don't regret it later.

Quote:

Originally Posted by Mikeez

Can't I use Allen key instead of the hex bit socket??

06-17-2015, 02:34 PM	#173
DarkSunrise Senior Member Join Date: Apr 2012 Drives: 22 BRZ (Previously 13 FR-S) Location: USA Posts: 5,798 Thanks: 2,187 Thanked 4,243 Times in 2,221 Posts Mentioned: 48 Post(s)	Thanks for the writeup! Changed out my diff and transmission fluid using Motul 300. My transmission took 2.3 L and my rear differential took 1.1 L. The new fluid feels thinner. I get more sensation through the shifter. Also makes the transmission less notchy when cold. When warm, it's not too much of a difference and I still get an occasional grind into 3rd/5th. Haven't noticed a difference with the rear diff fluid, but will see after my next track day. __________________ "Never run out of real estate, traction, and ideas at the same time." 2022 BRZ Build 2013 FR-S Build

10-08-2015, 11:53 AM	#178
StinkyLinky8 Junior Member Join Date: Apr 2014 Drives: Subaru BRZ Limited Location: Bucks County PA Posts: 5 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s)	Crush washers Does anyone know where I can pick up (prefer to order online) the crush washers needed for this job? Maybe some part numbers? I'm hoping I could just pick them up from the Napa around the corner but prefer to have a part number on hand. Also, is there any difference between the Oil pan crush washer/Trans/Diff crush washers?

11-13-2015, 06:39 PM	#181
Mikeez Engineering Student Join Date: Jan 2014 Drives: Scion FR-S 2015 Location: Montreal Posts: 628 Thanks: 18 Thanked 49 Times in 46 Posts Mentioned: 4 Post(s)	Can't I use Allen key instead of the hex bit socket?? __________________ There’s no time to stop for gas, we’re already late

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05-05-2015, 12:06 PM	#170
Jhood Member Join Date: Jul 2014 Drives: 2014 BRZ Limited [6MT/SWP] Location: Long Island, New York Posts: 51 Thanks: 13 Thanked 35 Times in 11 Posts Mentioned: 0 Post(s)	Finally changed mine out, dealership told me with a straight face "oh the BRZ is supposed to feel that way when shifting, it's notoriously notchy.. it's a brand new car I can assure you that it doesn't have any metal flakes in it already." I think I might send these over.

09-07-2015, 06:08 PM	#175
Khyron686 Senior Member Join Date: Dec 2011 Drives: 2011 Outlander XLS, 2013 FR-S Blue Location: Calgary, Canada Posts: 634 Thanks: 129 Thanked 168 Times in 102 Posts Mentioned: 3 Post(s)	30,000 kms, did both trans and diff (motul for diff, pentosin for trans) - worked great thanks to the excellent walk-thru. My plugs looked like the ones above - full of crud.

10-06-2015, 05:03 PM	#176
Toyarzee Shibby! Join Date: Feb 2014 Drives: '14 White FR-S, '01 turbo mini taco Location: Costa Mesa, CA Posts: 647 Thanks: 838 Thanked 583 Times in 269 Posts Mentioned: 4 Post(s)	Is someone able to explain or post a pic of filling Trans from above car instead of while underneath? I assume you don't drop the fill hose through the body somewhere and just rely on gravity over any incline in hose angle to fill hole? I usually pull shifter assembly for filling up tranny in my other car lol. Eff those nozzle deals... Thx

10-08-2015, 12:07 PM	#179
Toyarzee Shibby! Join Date: Feb 2014 Drives: '14 White FR-S, '01 turbo mini taco Location: Costa Mesa, CA Posts: 647 Thanks: 838 Thanked 583 Times in 269 Posts Mentioned: 4 Post(s)	Yes they are different and part numbers listed earlier in this thread

11-05-2015, 05:16 PM	#180
scionfr_s Senior Member Join Date: Aug 2012 Drives: Scion FR-S Location: Manchester, CT Posts: 310 Thanks: 45 Thanked 32 Times in 26 Posts Mentioned: 6 Post(s)	So for an auto tran, u need 7.5L of ATF and 1.2L of differential fluid?

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