How do you change lower ball joint 1999 Yukon Denali?

To change the lower ball joint on a 1999 Yukon Denali, start by safely lifting the vehicle and removing the front wheel. Next, detach the brake caliper and rotor, then remove the lower control arm from the steering knuckle. Use a ball joint separator tool to disconnect the old ball joint from the control arm, then press in the new ball joint. Reassemble the components in reverse order, ensuring everything is torqued to the manufacturer's specifications.