Here is the list: 1- When I dumped my dump trailer today, I was nowhere near the 12K lb. GVW. It was very slow to lift and is creaked a little.. This is the first time I had this much in there. It seemed to strain just ever so slightly. As soon as it reached about 50% dumped, the speed picked up. Is a small strain normal? I also noticed that where the rig was parked there was a few drops of liquid. It could have been from the truck A/C, but I am paranoid, so I think it is hydraulic fluid. Is it normal for a trailer to leak a little fluid? The piston casing has always been a little wet with hydraulic fluid since the day it was new. I noticed that the hydraulic tank was not full all the way up. Should you have to fill it up every once in a while? Is this why it is slow to lift? What type of fluid should I use? Of course I have lost my manual! 2- My F250 sags very little in the back when hooked up, but more than I want it to. I like a truck that doesn’t sag. I know that Timbrens do wonders for trucks with plows on the front, but how well do they work in the rear? Would they solve me saggy rear lol! It only sags about 1.5” at most, but it drives me nuts. Would Timbrens cause anything in the rear be more likely to break or cause any damage? 3- Now to the electrical: When my truck sits for a couple of days the gauges stick all the way to the top. It did this at the dealer and they said it was because it had been sitting on the lot for a while. When I drive it everyday everything works great. When they stick after four or five starts over the course of the day they work fine. What is going on? Also, the door agar light has stuck on with all the doors shut. This causes the interior lights to stay on even when you turn off the dimmer switch. I try a bunch of different things like locking the truck etc… nothing works. Then they just magically go off and they are fine for weeks. This has only happened to me twice. I still think I doing something wrong. Any opinions? 4- While towing with the O/D off on my V10, when I hit 2,00 RPMS my truck seems to get a higher pitch tone like something is kicking in, almost like a turbo type sound. Is this normal? Wow, what a day. So many problems, so little time. Other than these life is great, so I can’t complain. Feel free to take a stab at any of these questions. Thanks for your help in advance guys. Sorry for the long post.