Dunn, who has driven 132 winners this season, chose Fabiano over Living On The Edge (race 9) and Sign Him Up over Charioteer (race 10).
Dunn drove both Living On The Edge and Charioteer to win at Forbury Park last Friday.
He drove Fabiano to win at Orari in December, but he has not driven the 4yr-old in his past nine starts.
Fabiano won at Oamaru in May with Todd Woodward the driver.
Fabiano ran fourth at his last start at Forbury Park on June 19 after starting from 20m.
He is in a 3-6 win mobile 2200m tonight.
Woodward is driving Guru, who recorded his 10th win when successful in a 2200m (mobile) at Forbury Park last Friday.
Jonny Cox is the new driver for Living On The Edge.
Dunn will be driving Sign Him Up for the first time.
The 3yr-old has been disappointing in three starts since joining Loburn trainer Steve Dolan.
Sign Him Up won first up for Edendale trainer Barry Gibson-Smith at Invercargill in April.
He had a third in one other start for Gibson-Smith before transferring to Dolan.
Brendon McLellan is the new driver for Charioteer.
McLellan had to scratch Rathbone last Friday due to an elevated temperature and heart rate.
Rathbone has recovered and McLellan plans to start him in free-for-alls at Addington this month.
"He was just a bit off colour on the night and I will send him up to Ricky May for racing at Addington," McLellan said.
Flyin Ferrari, winner of the Graduation Final last Friday, has been scratched tonight due to slight soreness in a foot.
"He sprung a shoe and stood on it and he is just a bit tender," Hamish Hunter, his trainer, said.
Hunter plans to keep Flyin Ferrari in work for racing early in the new season commencing on August 1.
Gear changes for Forbury Park tonight:
Race 1: Solar Photo - pull down blinds replace half blinds; hood; Time Bomb - hood replaces pacifier, no nose flap.
Race 2: Aliveandkicking - full blinds replace half blinds; Caribbean Stud - half blinds, no spreaders.
Race 3: Looking For Luck - boring pole, rubber crupper, no bloomers, rein pricker or tail tie clip; Lenzie Elizabeth - snaffle bit replaces regulator bit; pull down blinds, rein pricker, no hood.
Race 4: Oh Whatafella - half blinds, no nasal strip.
Race 5: Darv Habben - crescendo bit replaces regulator bit.
Race 6: Ionafastone - murphy blind replaces pull down blinds; Cullini - driver without whip.
Race 7: Barberino - murphy blind left side; Petite Raider - rein pole left side; Howzat Fire - rein pole, no boring pole.
Race 8: Pacific Peer - murphy blind replaces replaces pull down blind; Oarsome - hood, no shadow roll.
Race 9: Lavros Jasper - no pull down blinds.
Race 10: Franco Elias - pull down blinds.
Race 11: Rongahere - no half blinds; Aveross Ronin - rein pricker; Camsplace Dexter - back bumper boot; Amazing Deal - pull down full blinds.
• Lis Mara, who took a mile record of 1.47.6 and earned $US2.1 million in stakes, has been secured by Nevele R Stud, Prebbleton.
Nevele R has secured the lifetime breeding rights for Lis Mara and will stand the stallion in association with Kentuckiana Farms, of the United States.
Lis Mara took his mile record in the Breeders' Crown and his time is the fastest recorded in the race.
He bettered 1.48 for a mile on three occasions and 1.50 16 times.
He took a mile record of 1.51.8 at three.
He won 27 races.
He won an elimination and final of the Breeders Crown, the Canadian Pacing Derby Final, the Des Smith Memorial and the American National Stake in 2006.
Lis Mara won the Canadian Pacing Derby elimination, Graduate Series Final, William Haughton Memorial elimination, Ben Franklin Pace elimination and a leg of the Classic Series last year Lis Mara is by Cambest, the fastest horse in history with a time of 1.46.2 in a time trial.
Lisa Mara is out of Lisheen, by Abercrombie.
Lisa Mara served 185 mares in the United States this year.
