Hello Treca, and I hope I got to you before your departure to the center for your trial! I am praying for you that all will be well!
Getting in the truck after, well, the first NO NO is raising your arms above your head, so you will need a step stool, or help to mount the rail up into your vehicle. Just don't reach for those grab bars, or it will be back into surgery for you! Take a step stool.
Hugs, and prayers,
Mark56