UPDATE

I looked a little deeper and found that the bushings are packed with grease
already. I took off the connection to the upper ball joint so I could move
the control arm around and sure enough that's the source of my squeak. I
shot some white lithium spray can grease in there while I moved it around.
That got rid of the squeak for about 50 mi. I think I'de like to try grease
fitting fix, but I'm still not sure what type of grease to use or if if it's
available in cartridges to fit my grease gun.

~Dan