Today I hitched up the AS to my 2015 Ram 2500 4x4 CC CTD and towed it around the storage area to find a level spot on asphalt and to adjust the brake controller. I had initially set the Ram ITBC to electric over hydraulic and when pulling out of the gravel storage site onto the asphalt access road found the trailer brakes not responding when pushing the manual control over to the max. I stopped and changed the setting to light electric brakes and found they worked and adjusted to 8.5 gain.
Prior to hitching up I put 5 washers onto the Equalizer head. I was going to use 3 but when I hitched up last week to check the WD I found the front wheel well height was still too high. 5 seems to be good. 5 washers restored front axle to the unloaded height. The rear is still 2" down from unladen but the truck still has a forward rake when looking at it from the side.
My conclusion, at least with the Ram which has coil rear springs, you have to apply almost as many washers as with towing with my 1/2T Tundra. I suspect the coil springs are a progressive, which provides soft spring action unload and more resistance as weight is applied.
2008 Classic 25fb "Silver Mistress"
2015 Ram 2500 6.7L Cummins. Crew Cab, 4x4, Silver
2010 Tundra 5.7L, Double Cab, 2wd, White