Yamaha WX 7

[Paul Chick (Earthlink)]

List Members:
A teacher/client of mine asked me to submit an estimate to regulate/voice
and "repair" the loose keys of her Yamaha WX7 upright.  The key problem is
new key bushings. Does anyone know what size the balance rail and front rail
pins are?  The piano is about 45 minutes away; I'd like to save a trip.

Thanks.
Paul C