Bus crews will now decide when to take strike action after overwhelmingly voting for more industrial action.
Of 96 papers sent out, 73 were returned with a " yes" vote for action.
There were 3 against strike action and one spoilt paper, but twenty papers were not returned.
Whilst no decision has yet been taken, the TT period has been suggested as a possible target.
Unite spokesman Eric Holmes says very little has happened to try and resolve the dispute since the last industrial action
Met Office issues coastal overtopping warning
Next two high tides expected to impact coastal areas
Questions raised about airport's safety and workplace culture
Government defends facility amid claims of cultural and operational issues
Garff Commissioners introduces street light scheme to be more 'proactive'
Local Authority says replacements can cost up to £800
Douglas Council purchases seven EVs for 'fleet renewal' programme
The local authority says these are replacing 'ageing' diesel vehicles