Holmes4x4
New member
For all you trailer guys. I have an M -416 military trailer I need to rewire the lighting for it. (It's being driven cross country) Now my question is should I go with the 7 pin or a 4 pin setup? My understanding is the 7 pin is only used when you have an electric brake axles, which what I plan on doing (next 6th month project) to make it easier on off road situations. The trailer is being built up to be an off road camping trailer. Any suggestions are welcome thanks and happy wheeling!!