Dustin Johnson has recently changed his driver. He had been using a TaylorMade SIM2 Max driver but this has since come out for a TaylorMade Stealth Plus model. What remains consistent is the loft which is 10.5 degrees, and the shaft which is a Fujikura Speeder 661 X prototype shaft. A
https://www.golfmonthly.com/gear/gear-news/dustin-johnson-whats-in-the-bag-124829