It is the ECM that's locking the TCC at WOT at 74mph in third gear, all 4l60es do this. The 4l80es usually lock in 2nd gear at WOT.
peace
Hog
It is the ECM that's locking the TCC at WOT at 74mph in third gear, all 4l60es do this. The 4l80es usually lock in 2nd gear at WOT.
peace
Hog
Bookmarks