Try a pair of mole grips on the shaft behind the mounting plate that the shaft goes through. If that does not work and it is fully siezed on. I have had to cut through the nut and shaft and replaced the whole thing. (not that expensive)
arizona kid
August 2011
if you look in the end of the thread then there is a torx30 hole there to hold it steady,if the nut is seized then it may need some heat to get it moving and may need replacing after doing this,give a good spray with release agent before trying it.
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Try fixfault.com to fix vans.