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The Walter Klassen Rigid Socket Adaptor replaces the existing linkage of your GPI Pro arm (eliminating the need for adjusting rod ends) for use with Walter Klassen back mount harnesses. If you purchase another socket from GPI Pro, you can quickly switch between front- and back-mount systems.
Machined in house from 6000 series aluminium, and anodised black. Assembled with stainless steel hardware.