hi you're going the right way,get hold of the arm behind the locking nut with a mole grip cheers

 

Bit confused by your post you say it failed on a track rod end but then you say your dismantling a ball joint from the hub which is suspension related and not steering related..

 

The actual Rod End is a ball joint Phil.
And yes, Ball Joint is another suspension part entirely.

@OP Mole grips on the Rod into the Rack, turn TRE anti clock.
Count the turns to remove so when you put the new one on you can set to same (almost) position.
You will need tracking check and set.

 

Did you try and slacken the track rod end from the steering joint before removing the nut from the hub? as already posted a good pair of mole/vise grips should shift it.

 

There is usually a flat side on the trackrod. As said before, a good pair of mole grips should hold, failing that refit the trackrod end to the ball joint end and then loosen the locking nut. If its the track rod end that will not undo and if mole grips won't hold, then you may need to apply a bit of heat to the track rod end to get it to expand enough to loosen. If all else fails, then use a cutting tool to cut through the track rod end (be careful not to cut too deep) so that again the trackrod end is able to loosen. Plenty of WD40 will help.

 

Hi thanks for your replies, I've put heat on to it but it still won't budge, gonna get the grinder out

 

Mole grips as you have found, are a waste of time.
What you really need is some Stillsons. NOT a monkey wrench (pipe grips) either.
Stillsons bite harder into the metal, the more pressure you apply. I'm surprised none of the experts mentioned them.
Other tricks to try:-
Using two hammers, one from each side simultaneously, batter the TRE shaft. This will "stretch" the hole larger.
Wasaloadie is right, but I would make my "incision" in a V with a grinderette, Get it hot & fill with Plus Gas.

 

A little patience with a blow torch to heat it up is all it needs....i had to do one on my car recently and instead of using mole grips i used a spanner on the flat edge worked a treat.

 

cheers for the replies guys, eventually got it off and replaced, passed its MOT tonight :d

 

Good result! well done