Dreamin

I believe this is the same procedure as the C6. But I thought I’d do a write up to make us Z06 owners feel special
This is a very easy do-it-yourself project... it took me less than an hour.

DIY - Diff Fluid Change is HERE

*** Standard disclaimers apply. I assume no responsibility for any damage. Please be careful - the consequences of a mistake or improper install could be disastrous ***

Pics below are from a 2007 Z06, and a 2007 Service Manual was used.

Tools
* Small 3/8” Wrench or Large Wrench with a 3/8” Extension
* Oil Drain
* Suitable Pump / Transfer Tube (I got the pictured Pennzoil Pump from my local Kragen)
* 4 Quarts Trans Fluid (p/n 88861800 for GM fluid)
* Drain Plug Sealant (p/n 12346004). Note: I've never used this stuff. The red stuff applied at the factory seems to keep the plug sealed for years and many, many fluid changes -- experience from my C5Z06. But it is listed in the Service Manual.




Step 1) Raise Car
Car must be level once raised to get an accurate fluid level reading.


Step 2) Locate Trans Fill and Drain Plugs
Fill Plug is on Driver's side of Trans; Drain Plug is on Passenger's side.
Note the number of exposed threads on each.




Step 3) Optional: Remove Electrical Connector from Trans Temp Sensor
This gets the wire out of the way of the fill plug.
Unclip it using your finger, and pull out.




Step 4) Open Fill Plug
I’m a big believer in opening the fill plug, before dumping the fluid out
Place Oil Drain under Fill Plug
Insert the end of the 3/8” Wrench or 3/8” Extension into the Fill Plug (no socket is required) and open.
A little fluid may dribble out.
Wrench inserted into Fill Plug (behind Trans Temp Sensor):



Step 5) Open Drain Plug
Place Oil Drain under Drain Plug
Insert the end of the 3/8” Wrench or 3/8” Extension into the Drain Plug (no socket is required) and open.


Step 6) Close Drain Plug
Once fluid is drained, close the Drain Plug
Torque to 20 lb-ft (27 N*M) or tighten until the original # of threads are exposed (step 2)


Step 7) Fill Trans with Fluid
Insert Pump / Transfer Tube into fill port and add fluid until it starts to dribble out, and then stops dribbling.
Mine took ~3.5 quarts.
* From Service Manual: Fill the transmission with manual transmission fluid, until even with the bottom of the fill plug hole. *
Pump in place:


Overflow draining out:



Step 8) Close Fill Plug
Torque to 20 lb-ft (27 N*M) or tighten until the original # of threads are exposed (step 2)


Step 9) Reinsert Electrical Connector into Trans Temp Sensor


Step 10) Lower Car and go for a Test Drive


That’s it… enjoy your new Transmission fluid!

ProgGod

Correction makes it perfect.. nice job

lorenzo

Great write up

Dreamin

You guys are absolutely right.

*Procedure above corrected*

lorenzo

NICELY DONE!!!!

dvandentop

excellent post

i need to change mine and the rear axle after a long summer of racing.

Dirty Howie

Again .....

MOST EXCELLENTLY DONE !!!!!!!!!!


DH

MikeP

Thanks for excellent post and color photo's for us shade tree Mx's! It'll inspire confidence for us learn as we go Z owners!

Mike P.

BearZ06

Changed mine already but thanks for taking the time to organize, take and post the pictures. Most of us are in too big of a hurry to do that but it will be very helpful for those considering this DIY. Excellent info!

avacorvette

ByByBMW

Great write up. Wish I had seen this before I did mine, would have saved me some grief when I couldn't get back in the amount of fluid that GM says is in there. Your experience mirrors mine.

WELL DONE!!!

walterm32

RoHo

Both of your DYS write up's for the Trans and Rear End fluid changes were done very well - Thank You -

Both of these pictorials should be permanently shown at the top of the Z06 page for other DYS guy's.

Mr Moderator, can you make this happen?

MatthewR

Very useful for all.

ThomasJHofmann

Great write up, thanks. My last vette (an '03) had a hard shifting MN6. Switching to GM Synchromesh Transmission Fluid PN 12345349 greatly improved its shift feel. My C6 Z06 shifts pretty good right now, much better than the '03 did when it was new. I'm thinking the '07 will shift even better if I use the Synchromesh trans fluid.

Has anyone used this fluid in an '07 Z06? Any ill effects?

From C6ZO62C8

nice job

troyman1216

Very Nice Job, Thank You!

Oskee

Great Post on both the fluid change on the tranny and diff !
Yo da man !n

AtlBlkZ06

Thank you for taking the time - appreciate it!

evo8 MR

Excellent post!!! I was looking for a post like this like a month ago and couldn't find one specific to the Z06 so I ended taking it to the dealer which only cost me $52 for labor, I providd my on oil (Red Line MTL).