Sorry, I was headed out and did not get to reply before leaving and did not have internet where we were camped.
Not sure about the solenoid, think it was what looked like the "relay" that couples the engine and house batteries when one or the other needs juice from the other.
My Ultra lite trailer (9,000 lbs loaded) was supposed to be towable by a 150/1500 pickup. Not really, I could not find such a truck, so got a 2500. I think the Ultralite was indeed designed for a 150/1500 because it sat way nose-high. Dexter did not make a lift kit for this particular model so I made my own. I bolted 2" x 3" steel tube between the axle (torsion bar type) saddle and the mount on the trailer. Lifting the trailer 3" at the wheels raised it 6" at the rear end. Not level but only an inch off of level.
Two questions. 1. What is the solenoid you mentioned? 2. What do you mean Lifted for your 2500? I read a forum that lift kits can be used on 5Wh toy hauler. My Dodge 2500 has Pullrite hitch that puts the nose of camper pretty high while towing. I think that is driving fuel consumption up. I changed from fixed factory hitch bc I kept hitting cab of trk during turns. This Pullrite works awesome and I had pretty good fuel MPG before it was installed.
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