I use a angle grinder to cut out the ears (bolt holes) then cut out the spindle and ball joint front the housing. Then, I used a dremel with cutting discs to VERY carefully cut the housing from inside the ball joint housing. Some people think I am MAD doing this and takes time. But.. I am decent with a grinder and no damage was done to the knuckle if you are careful. Mine had rusted in for 10 years in damp England so they where almost welded as part of the knuckle.

On another note, I did them again last year, this time it was so much easier however it was cold so I used a blow torch to heat the knuckle up then with a couple of bangs with the 9 lb short handle hammer, came out.

Knuckle off is probably the best solution.

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BMW X5 E53 3.0 Diesel Sport | Sapphire Black Dakota Beige Leather interior | Year 2004

What I had updated
Carbon Effect Steering Wheel
Panoramic Sunroof Fix
PVC Replacement
All glowplugs and glowplug regulator
New discs and pads all round
All new front suspension links, bushes and rods