Can seat tracks from the xh would fit on the BA seats ?

I take it that you are trying to fit the runners from your XH seats to the BA Seats?

Not having seen under the BA seat, I am not 100% sure what the exact set up is but I have seen runners fitted to other seats. Doing a Google seach, every thing I found said some cutting and welding was involved.

Contact EFFALCON, I know he has done it and he should be able to help you out.

I fitted a set of EF runners to a set of Toyota seats. Few little mods but they came up sweet.