The Bulldogs' big men led the rest of the team over the top of the Broncos and on to victory in the Round 11 clash at ANZ Stadium.
Aiden Tolman, James Graham, Frank Pritchard and Sam Kasiano all made impacts as the Bulldogs built on a 6-4 halftime lead to win 24-14.
Tolman was the standout, running for 173 metres, making a line-break, an offload and 37 tackles and scoring a try in his 60 minutes on the field.
Graham powered for 169 metres in his 58 minutes, with 36 tackles as well, while Pritchard and Kasiano each scored a try.
Fullback Ben Barba got the Bulldogs rolling with the first try of the match, in the 10th minute, and Josh Hoffman touched down to put the Broncos on the scoreboard in the 31st.
But the Bulldogs began to pull away with Pritchard's try in the 46th minute and led 18-8 midway through the second half. The Broncos never got closer than 10 points down after that.