Will Skelton might have sewn up a starting berth for the first Bledisloe Cup Test, the Wallaby debutant living up to his giant stature to sink France 39-13 in the third Test on Saturday at Allianz Stadium.

The double-act of Skelton and attacking cornerstone Israel Folau starred in front of a record crowd of 43,188 on a picture-perfect afternoon in Sydney to clinch the Wallabies' first three-nil clean sweep of the French.

New Zealand's Bledisloe Cup dynasty stretches back to 2003, but the Wallabies will go into the first Test of the Rugby Championship against the All Blacks on August 16 with rare momentum and confidence.

Their impressive five-tries-to-one win over France marked their seventh straight victory, the longest streak for an Australian side since 1999-2000 when they were last world champions.

"I'd say this is the most confident we've been," said captain Michael Hooper.

"Seven wins in a row ... it's a nice space to be in."

Skelton announced himself to international rugby with a bang, crashing over two defenders to score with just his third touch and setting up a breathtaking try for Folau in a memorable debut.

Coach Ewen McKenzie says the Wallabies couldn't have prepared better for the daunting challenge ahead, and admits Skelton might become a key figure in his tactics.

"He's got a fairly unique approach to the game and it gives us something to think about for sure," McKenzie said.

"He had a significant influence on a Test match against a tier-one country in his first game. You can't do much more than that.

"The best thing we could do in terms of the All Blacks is come through this series with a style of game to be confident about ... and get three wins in a row.

"Now we'll obviously have to look at the All Blacks, technically, tactically."

It was a big day out for the NSW Waratahs, who next week resume their push towards a Super Rugby home semi-final with their Test players fit and firing.

All points were scored by NSW players and man of the match went to Waratahs powerhouse Wycliff Palu.

After Folau was silenced by France in last week's 6-0 slog in Melbourne, the dynamic fullback came to life in front of the biggest rugby crowd at the Sydney Football Stadium to cross in the corner and boost Australia to a 20-6 halftime lead.

Then just two minutes into the second half, Skelton defied his 2.03 metre, 140kg frame to pop a gem of a ball to a flying Folau who saluted the crowd before crashing over.

Folau's double was his third in just 18 Tests, and brought his overall count up to 13 five-pointers.

If the Wallabies hadn't send a clear enough message to the All Blacks that they were coming with a new vigour in 2014, it was reinforced when skipper Hooper swan-dived over in the 61st minute - before reserve halfback Nick Phipps managed to get in on the act.

It was a nice 49th birthday present for McKenzie, but there's still plenty for the coach to think about.

"We resurrected our style of play and stuck to that," he said.

"We were probably over-enthusiastic. But I was happy about the intent. We didn't confuse anyone with what we're trying to do."