Mazda CX-9 Grand Touring 2009 Manual page 654

Fig. 3: Identifying Front Drive Shaft Components & Torque Specifications
Courtesy of MAZDA MOTORS CORP.
LOCKNUT REMOVAL NOTE
1. Lock the hub by applying the brakes.
2. Knock the crimped portion of the locknut outward using a small chisel and a hammer.
3. Remove the locknut.
2008 Mazda CX-9 Grand Touring
2008 DRIVELINE/AXLES Drive Shaft - Mazda CX-9