RA/EVO Rear Diff ATF SP3 drain

[talktomrgibson]

anybody changed the rear diff fluids before? i'm planning on doing it Wednesday night, but haven't found a ton of info on doing the ATF-SP3 side.....i'm assuming its a simple drain and refill to the hole deal as i'm lead to believe there is no bleeding required (this part is SEPARATE to the tank that is located in the boot).

just wanted to check in case anybody had done it before.

[sl1m]

No bleeding is required, did mine last year with just a drain & fill no problems, same procedure as transfer/diff change, just make sure you fill the right one with the right fluid.

[philsra]

If you have a ralliart the rear diff is not Ayc so there is no ATF SPIII in it. There is however a clutch pack in the centre diff that uses ATF SPIII. Just a little bit of general info.

Cheers

[scott_drake]

on evo the AYC is pressure, and needs bleeding idk about ralliart


Please take note of your fluid that comes out and since u are draining it yourself, flush the system out to, (fill, bleed, drive 10mins, drain, repeat) watch how much crap will come out the system..get new crush washers too, you dont want fluid leaking because you didint replace a $1 washer

then maintain every 5-10k, or 3-6months

[BZC-45S]

As stated above, RA rear diff is simple drain and fill (of LSD gear oil, SAE 90W - not ATF SP3).

[scott_drake]

As stated above, RA rear diff is simple drain and fill (of LSD gear oil, SAE 90W - not ATF SP3).

Yep thats it, drain and fill replace washers, only flush if changing oil types or system is extremely foul