It could be a great deal, it could also require a trip to the factory for a rebuild. Condition condition condition on these things.
Here is a good thread to help you identify some of the issue area's on a Hensley...
Broke HensleyAnd no, I am not trying to doom and gloom, nothing is perfect and its a good idea to know where the issues are with Hensleys. But, in order for Hensley to transfer the lifetime warrenty on this hitch its about $500 ish bucks...Suddenly $650 turns into $1150.00 which is getting close to what a re-furb Hensley runs from the factory.
Oh, the factory refurb... see this
page on the Hensley website and the information on the refurb Hensley program is near the bottom.
Thanks!
Jeremiah