I decided to go ahead and inject the other upper control arm with grease also even though it has given no problems. I usually hate riding on Interstate 95 because of the concrete expansion joints in the road.
Tonight on the way home, I never felt the first one. I can only imagine what a front end rebuild would do for the ride of the car.
I replaced everything on the rear end - shocks, sub frame bushings, springs, differential mount. Tranny mount was good.
That grease in both upper control arm ball joints did wonders. Laugh if you want to.
I cannot wait to see what the car would feel like with all new bushings in the front end!