I experienced something in my truck which I've read about but never had happen to me. The description "Pig on ice" , which I've heard before, has new meaning for me. We're in the middle, or more literally under, the atmospheric river here in the bay area. It started raining last evening, and rained all night. I stayed the night at my daughter's because I helped a friend move, load a rental truck, yesterday. It had started raining by the time we finished, so I decided to stay at my daughter's. Her area is scheduled to get ~ 2.5 inches of rain today, starting at midnight last night. Come time to leave this morning I did a 5 point turn at the bottom of her driveway so I could go out forward, see where I was aiming. I couldn't make it up the driveway, the tires started spinning. After doing that twice I backed up all the way to my parking space so as to get a running start, and made it to the top. The truck was empty, no load. I'm thinking of putting about 500 pounds of load in the bed. That should help. Here is the driveway.