If the lock is stuck, the tow bar may also be rotted to the receiver. More
heat and beat. I've seen tow bars that were seriously stuck on.

One time, I also helped a friend remove a ball hitch from a SUV. That took
heat, and impact gun to get the bolts to loosen.

Christopher A. Young
Learn more about Jesus
www.lds.org
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wrote in message
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You already did the oil and hammer method. Try to hammer harder!!!!
It's junk anyhow.....

If that dont work, use an angle grinder and cut it off. Thats a no
brainer....

Of course you'll have to buy a new one, but it dont have to be the
locking type unless you live in a real high crime area. The non-lock
type are about $5.