Hub nut.

[v6matt]

I tried to change my front hub earlier today, but couldn't undo the hub nut. I had the brakes on, and the wheel back on and on the ground to give it a bit more friction. I was standing on my breaker bar, all I managed to do was snap the end off of my breaker bar!
I've changed hubs and cv joints before and I've never come across one this tight before.
It looks like the only option is a windy gun??

[johnny]

Did you take the split pin out?

I can't give any advise other than a bigger bar or impact gun

[stanc3w0rks]

Stronger head on the bar. Those nuts do be stupid tight (for good reason I suppose).

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[v6matt]

Yes I removed the split pin, I'll have another go today when I replace my bar.

[stanc3w0rks]

Did it snap the head of the bar or the bar itself? If you can replace the head the replacements are usually stronger.

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[v6matt]

Job done, just need to know the torque setting for the cv joint nut if anyone knows it please.

[coupe77]

Use new nut.
150 Nm
Slacken off 45°
250 Nm.