Thread: What happened to your D3/D4 today?

Tried to change the trans fluid today in the 6HP28 today. Got the fluid changed (standard single drop process, about 5.5L dump) but good old Perth temps, the fluid was at 55C at fluid topping off. Going to try in the morning once it’s cooled to ensure it’s at the right level.
Also did the transfer case while I was there.
Found a bit of trans oil seepage. Found all the trans pan bolts were able to be nipped up a bit so hopefully that’s that.

Added an extra 750ml of trans fluid when topping up this morning. This was at 30-35deg fluid temp compared to 55deg. That’s a significant difference. You can see how some people might end up under filling them without the right knowledge.
Everything tested and runs wonderfully. Did NOT reset adaptations.

Originally Posted by DiscoJeffster

Tried to change the trans fluid today in the 6HP28 today. Got the fluid changed (standard single drop process, about 5.5L dump) but good old Perth temps, the fluid was at 55C at fluid topping off. Going to try in the morning once it’s cooled to ensure it’s at the right level.
Also did the transfer case while I was there.
Found a bit of trans oil seepage. Found all the trans pan bolts were able to be nipped up a bit so hopefully that’s that.

I found the same when using the thicker neoprene steel pan gasket. Had to re nip each pan bolt a few times.

Instagram photo by wrc307 • Aug 27, 2015 at 10:39 PM[emoji[emoji6]]ZuoHs/?igsh=MTNbm[emoji[emoji6][emoji6]]oY[emoji[emoji6]]cpqYw==


That didn’t go well

Originally Posted by PerthDisco

That didn’t go well

What would that be?


Screenshot_2025-01-01_18-38-55.jpg

Originally Posted by BradC

What would that be?


Screenshot_2025-01-01_18-38-55.jpg

Having problems posting links

This from Instagram

Oh dear. That looks expensive.

Originally Posted by BradC

Oh dear. That looks expensive.

Nah, just the excess and then it’s Gone!

There was another victim!