Speedplay X1 and X2 pedals

[tantra]

I have Speedplay X1 pedals with a bad needle bearing on the left side. I would rather not shell out $330 for a new set. Can I order X2 pedals and swap the steel spindles for my old Ti spindles? In other words, are X1 and X2 pedals the same except for the spindles?

[ECT]

Replacement pedal body's, with a new needle bearing installed, can be purchased online or from a dealer. I have heard and read from others, that just the needle bearing can be replaced, but Speedplay says it permanently bonded to the plastic body.