Don't know what the diameter of the hook is. The older bar has the chain welded to it and there is only 1/2" space available on the chain link for the hook to fit.
The only issue I have is the older bar has the chain welded to it and the links have only 1/2" space to fit on the hook. Don't know if that will fit. Don't know what the diameter of the hook?
Do you happen to know the model of your Eaz-Lift WD. I have the same kind and need to replace the snap up brackets. I haven't been able to find the older style brackets