To replace lower Control Arm bushings, one will need the following tools: Control Arm Bushing service set (J 21474-01), a nut (J", 21474-4 high-pressure lubricant (j 23444-A), puller bolt (J21474-27); bushing installer (l j 21474); bushing installer (j21 474-2, and Front Knuckle Support ). J 35379). Start by taking out the lower Control Arm and clamping it to a vice. Mark the lower Control Arm along the flat edge of bushing flange and assemble the bushing removal tools. Puller bolt (J 21474-27), driven. Sprocket support bearing installer (J 34126), front knuckle support (J 35379), bushing installer (J 21474-2), and nut (J 21474-4). Combustion chamber is the term that refers to the part of the engine where the air and fuel mixture comes together for nearly instant combustion. The combustion chamber is primarily the area that lies between the piston head and cylinder head. The head is the part of this engine facing upwards when the engine is in its horizontal position. Therefore, the combustion chamber should lie above the piston crown, and at the centre, it should be close to the valve. Disassemble the bushing removal tools. For installation, put the flat of the bushin flange to the mark on the Control Arm, 30 degrees to the centerline, thin slot of the bush in and outboard. Place the bushing in the Control Arm and now assemble the bushing installation tools. Puller bolt (J 21474-27), driven sprocket support bearing installer (J 34126), bushing installer (J 21474-5), nut (J 21474-4). Again, apply the high pressure lubricant (J 23444-A) to the threads of the puller bolt(J 21474-27) and then tighten the nut(J 21474-4). Finally, pose apart the bushing installation tools and insert the lower Control Arm.