The “L” shaped connector in your hand is for the solenoid on your axle. I have been working the electrical bigs out of the same machine. I replaced the crank sensor and got the fuel pump to run, but now I’m waiting on a new voltage regulator. There is an 8 pin connector that will probably need to be replaced on your unit too. These things were not meant to go in water or mud as designed. I would also test the four pin relays in the battery box as those were also shot on my well neglected ran too hard 800.