76 318 Duster, 998 trans?

Better chk those ujoints and pinion yoke on the rear end before you decide much.
The band adjustment procedure can be looked up on Google, or Youtube.

Like this,

[ame="http://www.youtube.com/watch?v=hoIH8ebXNZY"]904 Torqueflite Rear Band Adjustment - YouTube[/ame]

[ame="http://www.youtube.com/watch?v=i6562c-8pBU"]904 Torqueflite Front Band Adjustment - YouTube[/ame]