These determined the Western Canadian representative in the 1984 Allan Cup Final.
Best of 5
- Thunder Bay 5 Spokane 4
- Thunder Bay 6 Spokane 5 2OT
- Thunder Bay 4 Spokane 1
Thunder Bay Twins beat Spokane Chiefs 3 wins to none.
Thunder Bay Twins advanced to the 1984 Allan Cup Final.
List of Western Canada Allan Cup Playoffs