I am going to putting a yank stall in my 2004 Gto in the next week. The car has no leaks but has 140k miles on it. Should I go ahead and do the rear main? Any part numbers would be very helpful. Thanks in advance

 

Rear main, trans input would be the two Id suggest. Can get the part numbers off any auto parts store website.

 

Reged, in the same boat. Since everything is apart how much more work is it to do the rear main seal since I am bringing it to a mechanic and not doing it myself? I'm right behind you with 110k.

 

You might already have it covered but trans pan gasket. Then of course might as well do filter...

 

Replacing the rear seal is trivial when the trans is out - remove the rear housing and easily press the old one out and the new one in. Even with the trans installed, the only extra step is removing the driveshaft.

The front seal is also relatively straight forward to replace after you remove the metal spring clip that helps hold it in place.

The o-ring on the input shaft should always be replaced when swapping converters.

 

Thank you for that great heads up.