Sir,
If you hitch and latch the ball, then raise the trailer tongue using the tongue jack, you'll find your equalizer bars raising up to match their L brackets. My previous trailer had an obscene tongue weight, 1400 pounds, and this is the technique I used to get the spring bars onto their perch. The reverse procedure should be used to unhitch; raise the trailer tongue while still hitched up, lift off the bars, then lower the tongue to uncouple.
You know when this hitch is set up correctly the trailer should be level, the truck should drop nearly equal front to rear, and the spring bars should be level with the trailer tongue. It might take some trial and error to get a proper setup with your new truck.
Good luck,
Randy
