Scottie - the second hammer is placed on the backside of the knuckle ring eye to absorb the blow from the striking hammer and keep you from bending something. The force from the blow will shock the eye and stud joint just enough to allow the tapered stud to pop free of the jammed fit..... as said above, hit it hard. Before you hit it, make sure the castle nut is still on the stud, but loose - it will keep everything from flying apart.

Frank

'89 [color:"white"]G-Raider[color:"white"] [color:"black"]Supercharged 3.0L, MegaSquirt 2, lockup A/T, 2.5" exhaust, 172k, Cibie H4s/Oscar SCs, Hella Micro DE fogs, Cobra CB, Superwinch hubs, LSD rear/Aussie Locker front, Bilsteins, Lifeline AGM, Rust-Oleum