Hi have a tow bar that is seized have tried to remove freed the lock but not joy.

my question is at the top of the receiver looks like a removable cap has anyone any experience if this comes off so i can get WD40 in there for a few days to release the corroded bearings?

thanks 2012 Vogue 4.4 TDV8 - Current
2014 Navara V6 - Gone
2004 Vogue TD6 - Gone
Grand Cherokee - Gone
Discovery V8 (LPG) - Gone
Discovery TD5 - Gone

Any of these threads help ?

They are bad for seizing. You could try taking the receiver out of the armature (may also be seized, bolt may be hard to release and removal of stem from armature may need big hammer), turning upside down and letting the releasing oil/WD40 trickle down. Good luck. Only Range Rovers since 1988

The receiver does indeed have a removable round plastic cap on the top, mine had a lot of overpaint on it so looked part of the
cast iron body. I removed it to clean off surface rust on the taperd bore with a cone wire brush before selling.
It has quite strong snap legs and doesnt come out easily, just be careful when attempting it.

may help? 2009 TDV8 3.6