Checkers also rents hub sockets (just leave a deposit).
I bought a dual pattern (6 & 4) at Pep boys for around $30, I think it is a Lisle? The 4 pin part of it acutally works better than most of the 4 pin only style.
Pete
'83 K5, 350 TBI (ex 6.2), 700R4, NP208, Dana 60/14 bolt, 4.56s, Detroits, 3" lift, 15-39.5x15 TSLs
'97 Dodge 2500 4x4 CC LB Sport, Cummins 5 spd