Australians should consider voting Labor to ensure there's enough opposition to hold the coalition to account should it win Saturday's election, Home Affairs Minister Jason Clare says.
A Galaxy Poll on the eve of the federal election predicts Labor faces a repeat of the 1996 election landslide that swept Paul Keating from power.
Mr Clare on Friday reminded voters of the advice Mr Keating once offered.
"If you're thinking about voting Liberal, I give you the same advice if you were thinking about jumping off a cliff: don't do it," he told the Nine Network.
Mr Clare appealed to the "true believers" to stick with Labor.
"Whatever happens tomorrow, you're going to need people like me, people like (Labor MP) Chris Bowen that will hold Tony Abbott to account if he becomes prime minister," he said.
Opposition immigration spokesman Scott Morrison said the coalition wasn't taking anything for granted, despite the polls.
But he agreed the coalition had run a strong campaign.
"Jason talks about jumping off a cliff," he told the Nine Network.
"Well the last six years has been what it's like to live at the bottom of that cliff after we jumped off that cliff with the Labor party."
The poll in News Corp Australia newspapers shows Labor's primary vote is 35 per cent, compared to the coalition's 45 per cent.
On a two-party-preferred basis, Labor sits on 47 per cent, and the coalition on 53 per cent.
Both leaders will spend Friday doing a last-minute blitz for votes in key areas.
Opposition Leader Tony Abbott is expected to head for marginal western Sydney seats and Prime Minister Kevin Rudd is heading to the NSW Central Coast, then Brisbane.
Mr Abbott said later on Friday morning he wasn't ready to claim victory yet, citing the drawn 1977 AFL grand final between North Melbourne and Collingwood.
"At three-quarter time Collingwood was well up but it was a draw," Mr Abbott told Collingwood president Eddie McGuire on Triple M radio in Melbourne.
"This isn't over. A lot of people are calling it already."
He urged people to vote for their Liberal candidate "if you don't want another three years like the last six."
Mr Rudd said he was "pretty confident in the good sense of the Australian people" when asked on the Seven Network's Sunrise program whether he was worried about losing his seat of Griffith.
"Let's just wait and see," he said
"The people of Australia will make up their mind when they go to vote tomorrow.
"If you have any concerns or anxiety or uncertainty about whether Mr Abbott's massive cuts will hit your job or your school or your hospital, don't vote for him."
Mr Rudd later sidestepped questions over who the next Labor leader might be if the government lost office this weekend.
Mr Rudd only said that if Labor was returned he would remain leader for the next three years under changes to party rules he introduced recently.
"If there is to be a leader of the Australian Labor Party going into an election the rules have been changed to ensure that that person remains for the following three years," he told Fairfax Radio.
"If (the Australian people) return me as their prime minister, the possibly of what you saw in 2010 (when Mr Rudd lost the prime ministership to Julia Gillard) happening again does not exist."