A method of reeving a hook block where the hook block includes: a first sheave housing containing a plurality of sheaves and having extended portions each with a hole therethrough, the first sheave housing including a housing frame at a bottom thereof, the housing frame including a locking surface; a first cross beam having multiple brackets each with a hole therethrough, at least one of the brackets having a plurality of surfaces (119a, 119b, 119c) corresponding to a plurality of angles of relative position between the first sheave housing and the first cross beam, wherein the plurality of surfaces (119a, 119b, 119c) correspond to the locking surface and form a gap therebetween at each of the plurality of angles; a first shaft rotatably captured within the holes of the extended portions of the first sheave housing and of the multiple brackets of the first cross beam; and a locking bar sized to be placed in the gap between the locking surface and any of the plurality of surfaces (119a, 119b, 119c), wherein when in place, the locking bar substantially immobilizes movement of the first sheave housing relative to the first cross beam, the method characterized by: laying a lower portion of a hook block on the ground, the lower portion being connected to the first cross beam; angling the first sheave housing to one of the plurality of angles of relative position; inserting the locking bar between the locking surface and the surface (119a, 119b, or 119c) of the at least one bracket corresponding to the angled relative position; and reeving a wire rope of the crane through the plurality of sheaves of the first sheave housing. a first sheave housing containing a plurality of sheaves and having extended portions each with a hole therethrough, the first sheave housing including a housing frame at a bottom thereof, the housing frame including a locking surface; a first cross beam having multiple brackets each with a hole therethrough, at least one of the brackets having a plurality of surfaces (119a, 119b, 119c) corresponding to a plurality of angles of relative position between the first sheave housing and the first cross beam, wherein the plurality of surfaces (119a, 119b, 119c) correspond to the locking surface and form a gap therebetween at each of the plurality of angles; a first shaft rotatably captured within the holes of the extended portions of the first sheave housing and of the multiple brackets of the first cross beam; and a locking bar sized to be placed in the gap between the locking surface and any of the plurality of surfaces (119a, 119b, 119c), wherein when in place, the locking bar substantially immobilizes movement of the first sheave housing relative to the first cross beam, the method characterized by: laying a lower portion of a hook block on the ground, the lower portion being connected to the first cross beam; angling the first sheave housing to one of the plurality of angles of relative position; inserting the locking bar between the locking surface and the surface (119a, 119b, or 119c) of the at least one bracket corresponding to the angled relative position; and reeving a wire rope of the crane through the plurality of sheaves of the first sheave housing. laying a lower portion of a hook block on the ground, the lower portion being connected to the first cross beam; angling the first sheave housing to one of the plurality of angles of relative position; inserting the locking bar between the locking surface and the surface (119a, 119b, or 119c) of the at least one bracket corresponding to the angled relative position; and reeving a wire rope of the crane through the plurality of sheaves of the first sheave housing.