Replace:
accs_007_u.ydd
accs_diff_007_a_uni.ytd

Location:
:\GTA V\Mods\x64v.rpf\models\cdimages\streampeds_players.rpf\player_one

Make sure 'Edit Mode' is turned on and that you are in your "Mods" folder.
Drag and drop "accs_007_u.ydd" and "accs_diff_007_a_uni.ytd" into the "player_one" folder and you're sweet as.