What I learned about creepers, bigger wheels go over things easier. So that was the plan.
And photo dump.
So basically, I cut the frame where the old wheels were at. I then welded on some new taller casters onto some square tube, and then the square tube to the creeper frame.
How is it working out? Well I have been using it for a few weeks now. It rolls ever so easily, Its fast and smooth. I even use it as a dolly at work. So I am happy with it. Cost? $10 for some new casters.