Yukon/Denali 2WD V8-6.0L VIN U (2004)
12. Disconnect the transmission oil cooler lines. Refer to Transmission Oil Cooler Line Quick Connect Fitting.
13. Plug the transmission oil cooler line fittings.
14. Remove the indicator tube nut.
15. Remove the oil level indicator tube.
16. Remove the seal from the transmission, if necessary.
Installation Procedure