Help wiring a trailer jack on my 70 longbed

[dropanddrag71]

Can some help Me with my wiring problem. Here is the background and some pictures. 70 long bed. First I'll say that right now all lights work... last owner has a trailer plug wired in and I bought on of those plug in testers and according to the tester the jack isn't working. There is a nightmare wiring mess under the truck because it seems someone also had one of those round plug ins for trailer lights as well. I am very limited n tools and skills... take a look. My tablet won't allow pics to load

[cdowns]

get a quick connector for trailer lights// just foward of driver side rear wheel there is a factory connector you unplug and plug the connector in and u are set to go to the trailer


any autopaerrts store

[dropanddrag71]

I am under the truck writing this.... I see what appears to be a connector behind the drivers wheel that looks like it connects in a cross member between the frame wheels. There is non in font of the wheel. Any idea of what it looks like .... the connector i need to buy. ... or where to buy it? Thank you

[dropanddrag71]

I found this at
Lmc truck... am I to assume I just unplug the factory connection, use this adapter, hook a ground and that's it? Anyone use this before?

Lmc part number 37_7541

[cdowns]

yep just plug an play// most autoparts stores have them or can get them no need to pay shipping on that part trailer and rv stores marine supply stores have them too

[dropanddrag71]

I tried tractor supply, harbour freight, and northern tool...plenty, but none for our years.
I will just call lmc in the morning... thank you for helping me out