Originally Posted by sep1234

I was able to remove the FILL plug after being curious. I used a 10 mm Allen socket and a ratchet. The fill plug removed quite easily -- just a little tug.

Then I tried a new tool -- a 10 mm boxed wrench with a ratchet head that swivels to different angles -- that I bought from Lowes. I used the 10 mm Allen stub, and it seemed like this would work. I used my hydraulic jack handle to provide lots of leverage. The drain plug is really stuck! The tool broke, and now it does not ratchet.

I really think this drain plug is frozen. Perhaps the factory used lots of loctite, or they used a fast spinning air tool during installation.

I reviewed the Helms manual procedure for removing the leaf spring. It requires a leaf spring compressor tool. They cost about $800 (according to one website), and Autozone does not appear to have one for rent.

I can make a tool like calemasters, which does look pretty strong. I will try that route.

Originally Posted by wagram

Hi I'm looking to buy the drain plug for my US C6 of 2005 , cause last owner destroy it ( can only open with a hammer so need a new one to replace after ) but cannot find it in france any links to find it in US ? thanks for your help

Originally Posted by vcone1

Any chance you can make another one. Here is my email vcone1@att.net

Originally Posted by sep1234

I would like to know any specifics of how you 2005 C6 owners removed the drain plug on the differential of your 2005 C6. I have tried two times after reading http://forums.corvetteforum.com/c6-c...s-for-faq.html, the thread to which people refer. My drain plug seems to be hidden above the leaf spring just a little more than indicated in the pictures of this thread.

I have a 10 mm Allen wrench, 10 mm Allen socket, and other tools. I cannot get the Allen wrench to fit between the leaf spring and rear end, because the shorter end of the Allen wrench is too long while the leaf spring interferes. It also appears that if I were to cut the shorter end of the Allen wrench to be the same length as the distance between drain plug and leaf spring, then there would not be enough clearance between longer end of Allen wrench (the handle) and the heat sinks on the rear end.

I checked the 2005 Helms manuals. The procedure states simply to remove the drain plug. I was hoping to find a special tool J-#### in the manual.

I am prepared to remove the leaf spring, but I just wanted to check a third time on this forum before proceeding.




Thanks,
Jamie

Originally Posted by sep1234

I actually did design a new tool. I cutoff a one-inch piece of the 10 mm Allen wrench. I put the one-inch 10-mm stub into the drain plug. Then I used a 10 mm crows foot, a 3/8" six-inch extension, and a 3/8" ratchet. I was careful to provide proper counter-torque and such. The drain plug was in there so tight. The crows foot was damaged. It was a cheap crows foot from Autozone. If I were to have a stronger crows foot, I think this idea would work. Maybe I will spray some penetrating spray at the plug, then wait, then use a stronger material for a crows foot. The cheap one from Autozone was not deep enough either, so it grabbed on just half of the 10-mm Allen wrench stub.

Originally Posted by Joseph Ji

Sir,

This will work with the 10mm crows foot.

Originally Posted by oregonsteve

Recently bought a 2008 with under 10k miles. On the test drive, and every day for the past few weeks, it grunted and groaned on slow speed turns in the driveway, etc. Dealer wanted $130 to change the diff fluid and claimed it is normal noise. Bought 3 quarts of Dexron #88862624 from Amazon at less than $16 each (wanted one extra). Took it to my local Lube-it-USA and chatted it up with the guy in the pit to make sure he knew what he was doing. Had him drain the old, then pump about half a quart of new through to "rinse" it out. He then pumped in about 2 quarts until it ran out of the fill hole. He buttoned it down, rinsed it all off and was done. $25 for their labor. I watched the entire process, which he was fine with. Drove to big empty parking lot and did the figure 8's. I figure, it worked for me, avoided the dealer, watched the process, and didn't have to crawl under the car.