ken,
Look these P260 pot sold by Leo Bodnar, if fit inside your throttle, are better than original ones.
http://www.leobodnar.com/products/BU0836/
Or buy generic USB stick in your local market, they use the same square pot's used by Saitek.
Some guy replace these pots for HALL sensor + magnets:
http://www.escuadron69.net/v20/foro/...r-sensor-hall/
Sokol1