

Should I change my transmission fluid?
This is a 07 Silverado 6.0LS, 2500 HD, floor shift, GMT 900. My Transfer Case housing adapter split in half. I’m putting a new Tcase in because I found debris on the drain magnet. The rear end of the transmission is completely intact and untouched. All of the splines are intact. I’m worried about possible debris in the transmission, but the transmission fluid on my truck was not regularly serviced. The truck has 150,000 miles