Rear Suspension (Commercial Chassis)
With B9Q/V4U (Hearse/Coach)REMOVAL
1. Raise the vehicle.
2. Remove the wheel and tire.
3. Remove the electronic height control height sensor link from the control arm.
4. Remove the fuel filler tube bracket and position away.
5. Remove the inner control arm bold and spacer.
6. Remove the outer control arm bolt.
7. Remove the control arm up over the shock tower to remove from the vehicle.
INSTALLATION
1. Install the control arm over the shock tower to install in the vehicle.
NOTICE: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
2. Install the inner and outer control arm bolts. Place a screw jack under the outboard end of the lower control arm to bring the suspension designed trim height. The inner control arm nuts must be tightened in design position to reduce wind up in the bushings.
^ Tighten the upper control arm inner and outer nuts to 108 Nm (80 ft. lbs.).
3. Install the fuel filler tube bracket.
4. Install the electronic level control height sensor link.
5. Install the wheel and tire.
^ Tighten the wheel nuts to 190 Nm (140 ft. lbs.).
6. Lower the vehicle.