OK after three days of soaking the rear duals are off but can't seem to free up the drums. There are three slotted & countersunk screws on the face of each drum, are these what's holding on?????? Do they need to come out???? RH or LH threads???? HELP!!!!!!!!


spartan 100

72 GMC 1500 4X4
72 GMC 1500 BURB 4X4
72 CHEVY CHEYENNE 2500 4X4
59 CHEVY SPARTAN 100