It's likely going to be a long weekend for both sides in the Canadian auto talks.

The Canadian Auto Workers warns it may target more than one of the Big Three North American automakers if negotiations fall through.

CAW spokesman Peter Kennedy says a decision about who to target will be made closer to Monday night when the union has threatened job action.

The union is awaiting a response to its latest proposal that includes cutting wages for new employees.

The CAW is prepared to allow a plan that would see new employees earn less when they are hired and take longer to reach the top end of the wage scale.

CAW president Ken Lewenza has said the union opposes a permanent two-tier system -- such as one accepted by the United Auto Workers union for employees at the automakers' US plants.

Kennedy describes the talks as the most difficult he's seen in more than 20 years, including the restructuring in 2009 to save G-M and Chrysler from bankruptcy.

(The Canadian Press)