Also, if your lower ball joints don't have a grease fitting... just tap them. It was easy, I did mine in minutes... I bought new zerks but I couldn't get them to thread. I used the old ones off the LCA's and they threaded right into my new holes. Just make sure your holes are drilled small enough... you can always go up a size... not down.
http://67-72chevytrucks.com/vboard/s...d.php?t=571825