Trailer height and wind? in Garages, Trailers, and Towing Posted October 19, 2018 · Edited October 19, 2018 by edinmass (see edit history) I like an in the floor spare and lots of 12 volt lights on the inside that work off the battery in the trailer for the winch, now they would be led’s. Electric jack is a nice touch. Sailun tires with mag wheels rated for 110 lbs air pressure. I have 8 D rings. Four are set up for 148 inch wheels cars, the others for a modern(50’s corvette). I would also get a modern trailer tracking unit wired into the trailer with a battery back up. They are very reasonable now and can help recover a stolen trailer with or without the car in it......kind of a trailer lowjack. The cost about ten bucks a month.......cheaper and faster recovery than insurance.