Mazda CX-9 Grand Touring 2009 Manual page 2250

WARNING:
1. Support the crossmember component using a mission jack and remove the installation nuts.
2. Remove the rear crossmember component.
Fig. 46: Supporting Crossmember
Courtesy of MAZDA MOTORS CORP.
REAR CROSSMEMBER REMOVAL/INSTALLATION [AWD]
CAUTION:
NOTE:
The rear upper arm inner bolt cannot be tightened completely with the rear
upper arm installed to the vehicle due to the narrow operation space.
Therefore, mark the position before removing the rear upper arm, align the
rear crossmember and rear upper arm markings when installing the rear
upper arm, and tighten the rear upper arm inner bolt completely before
installing the rear crossmember component to the vehicle.
1. Support the jack up point for the front crossmember using a garage jack.
CAUTION:
2008 Mazda CX-9 Grand Touring
2008 SUSPENSION Rear Suspension - Mazda CX-9
Removing the crossmember is dangerous. The crossmember
component could fall and cause serious injury or death. Verify that
the mission jack securely supports the crossmember component.
Performing the following procedures without first removing the ABS
wheel-speed sensor may possibly cause an open circuit in the
harness if it is pulled by mistake. Before performing the following
procedures, remove the ABS wheel-speed sensor (axle side) and fix it
to an appropriate place where the sensor will not be pulled by
mistake while servicing the vehicle.
Perform the work using a garage jack. When jacking up the rear
suspension with unloaded condition, to prevent bending the
front of the vehicle, support the jack up point for the front
crossmember using a garage jack.