Did a lot of work on my trailer, but mainly:
-30A AC upgrade, new PD converter, detachable power cord, AC & DC voltmeter/ampmeters, GFI outlets,
LED lights all around.
-New LP/CO detector.
-spare tire moved from back bumper to under rear floor. Allowed install of rear access door that gives access to previously unused storage space under rear bed.
-BAL crank-down stabilizers at each corner