The DMR V8 v2 Service Tool is designed for servicing the Dual Bushing bearing system found on the current V8 pedal with grey plastic end caps.
This tool now includes a 9mm socket.
Use this thin wall Cro-Moly Steel socket with a 13mm spanner to ‘back off’ the 11mm base nut against the 9mm lock nut on the end of the axle to adjust the pre-load on the bearings.