which one is it? these are off the PF website for X5... or I am missing some part numbers?

PFF5-901 - Front lower radius arm to chassis
PFF5-905-29 - Front anti-roll bar to chassis 29mm
PFR5-908 - Rear subframe to chassis bush
PFR5-4609-22 - Rear anti roll bar mounting bush 22mm
PFR5-4609-23.5 - Rear anti roll bar mouting bush 23.5mm - this one will fit 4.8iS

__________________
E53 X5 4.6iS
147K mi - Sold May 2013
Tireprints left in:
USA, Nicaragua, Costa Rica, Panama, Russia

E53 X5 4.8iS built 2005-10-17
66200 mi - June 2012
96000 mi - June 2013
112000 mi - June 2014
OEM fire extinguisher
OE first aid kit
OE tow hitch
OE TV module
OE aspheric mirror
K&N air filter
black/white badges
rear camera
4-channel video recorder

Here is the list of things I have done to the X