I have a 2006 Chevrolet Cobalt LS (2.2L) manual and did my transmission fluid change a couple months ago. Been meaning to post these pictures for a while and wanted to give a helpful tip for those that decide to change their transmission fluid. I know there is a how to, but if you don't want to shave an allen key, I recommend the EZ RED WC100, it allows you easier access to tight spaces and provides better torque for removing that plug... Also helpful if you want to attach it to a ratcheting wrench... anyways included some pictures below for reference.

If you want to replace the lower and upper transmission drain bolt/plug the part number is 93368573.

Tool to remove transmission drain plug: EZ RED WC100

Transmission fluid I used Amsoil ATLQT-EA (2 bottles)

 

I had 0 issues using an Allen key personally but this is still a sweet idea/tool and a good share.

 

Ive been using an allen wrench that i cut super short to fit there. Maybe the base model has less room.

 

It does, I have a socket that fits my ss but not my ls.

 

That's a nice tool kit

 

Those are handy. I just used an allen socket and extension for mine.

 

^That doesn't work for the drain plug which is exactly behind the subframe beam.

 

Ah OK. Yes I was actually just topping off the fluid