Man, you must be a masochist. It really depends on you pension plan. In the West I think you can only work 50 hours a month within a certain age range before being penalized. Maybe 62. then from there to 65 you can work some more hrs. then after 65 you can work as much as you want without penalty.
You couldnt pay me enough to go back to that mess. I deliberately let my CDL slide by not getting my physical so that i would never be tempted.
If you need the money , that is altogether a much different story.
good luck. ( ask your HR dept and pension administrator )