A side shifter having a quick-mounting anchor bracket for mounting on a conventional hook-type lift truck carriage without the need for welding of any side shifter components, such as a hydraulic ram anchor, to the lift truck carriage. The side shifter features alternative upper and lower hydraulic ram anchors and interlocking relatively movable components which are prevented from disassembly when the side shifter is detached from the lift truck carriage. Friction-reducing bushings for accommodating the transverse sliding motion of the side shifter are engaged with the quick-mounting anchor bracket in such a way so as to prevent not only transverse motion but also upward motion of the bushings which might otherwise occur under the influence of the load moment. The side shifter features lower hook assemblies capable of supporting the side shifter at an elevated position when detached from the lift truck carriage, and capable of exceptionally fine vertical adjustment.