Lemforder is the OEM for the E53 for all of the front & rear control arms, bushings and ball joints. I just replaced ALL of them (front & back) on my X5. I briefly considered other brands and bought ONLY Lemforder. If you are going to go through all of the time & labor to do so, why try to save a few $?

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2002 Euro X5 (E53) 3.0 diesel (M57)
5 speed manual with UUC short shifter.
Pre-xDrive NV125 transfer case (chain & gears).
Factory Xenon headlights, Spyder LED tail lights
Updated vortex crankcase breather.
Motorsport dead pedal, factory fire extinguisher, factory first aid kit, factory F&R mud flaps, factory PDC

Bilstein B6 shocks F&R
Redline oil has replaced "lifetime" fluids (F&R diff, manual transmission, transfer case and P/S).
Dimple magnetic drain plugs in all compartments.