What is the best way to grease the ball joints? I is expensive to change them when they dry up and go bad and there are not any grease fittings on the stock ones. I had a shop tell me to use a needle and poke a hole in the boot, shove the needle to the rear of the boot and fill from the back of the boot and pull the needle as you go. That is all fine and dandy till the boot purges grease all over the damn truck.