gopher, you need to switch to led taillights. I had the same problems as you,lights works on trip to the lake,return trip they don't.Half the time ,its the bulb connections are oxidized,you pull the lense off ,touch the bulb,and it works....for awhile. since I switched to the led fixtures,just plug them in,and they work. just have to keep the vehicle to trailer plug clean now , a job unto itself.
********************** [the member formerly known as fluffy}
