Quelle: http://www.reddit.com/r/swtor/comments/2t5v1j/302a_mined_rip_slot_machine/

New Slot machine chances:
Lose - 45%
win_token - 20%
win_troph_small - 16.999%
win_trophy_medium - 13%
win_trophy_large - 4.5%
win_scavenged_scrap - 0.2%
win_droid_parts - 0.15%
win_jawa_junk - 0.1%
win_certificate - 0.05%
win_imp_mount - 0.001%
win_rep_mount - 0.001%
Total: 100%
Some rounding was involved here and the walker mounts is one or the other depending on your faction.

Walker?
http://tor-fashion.com/gz-2-recon-walker/
http://tor-fashion.com/fa-5-recon-walker/