I've got a three foot cheater for the holder as well as the breaker bar used to loosen the nut. It's a job best done on the floor, but is a one person affair that way.
Tightening is another matter, but still best done on the floor. With the long cheater on the holder, it ain't goin nowhere!
Wanted: Dead, smashed, crashed or trashed gauges
BMW GAUGE REPAIRS - TACH*SPEEDO*CLOCK*VOLT METER *PODs & LIGHT BOARD*