Quote Originally Posted by BwolfGT View Post
My 98' 3.8 GT has about 106k on it, and the trans. fluid has NEVER been changed due to an obviously careless previous owner.
I was going to change it, but people keep telling me that if I change it now after not being done for so long, it could actually damage my transmission.
Is this true? Or should I change it?
everything you need to know about transmissions.

4T65E Transmission Info

The way I changed mine was a trans pan drop, then you can inspect the remains inside the pan to see if your trans is on its way out. I did mine at 120k and added a shift kit when i did it.