Frank, et al
on hydraulic barrel nut couplings that are heavily rusted, take a small
dremel (pin grinder) I prefer the 36" flex shaft extension. and score a
cut the long length but not too deep to ruin the threads underneath..
then if it doesn't just pop apart easily, a little heat and it'll
expand the outside most nut to come off easily.

Dan Stevens

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    BTW, glad you got through the power steering hose  repair.  Yes,
that coupling on the rack can be a PITA.  Heat and two  long handled
tight fitting wrenched seem to have worked for me so far as I've  not
wrecked one yet but I'm sure my turn is coming.
Ch eers, Frank  Condelli