I think I have figured out my problem. On the drivers side, the cooling package is attached to a steel tab with a bolt and bushing. On the driver side, the mounting isn't there. It is just resting on the frame extension for the Hydrolift. (Anyone interested in a used Hydrolift?) The whole cooling package is sitting crooked. I do not see any evidence something broke off. It could have been this way for 15 years, since the Hydrolift was installed.
Now to figure out how to address it. I think I will try putting a scissor jack in the low side and carefully see if I can raise it to the correct height. If that works, and the fan clears, then will see about how to get a mount in there.