Jake, don't worry bout those full-size bronco and blazer types. Those rigs are okay and if'n all ya wanna do is throw mud on folks and look purdy drivin down to the mall.
Ask yer cousin if'n a bronco has ever driven around the world. A Cruiser has! And bout the same vinatge as yours too!
Stick with the Cruiser my man and (when your old enuff) you can do this to him when he's stuck in what little ditch he finds himself in
I've wheeled with all kinda rigs and for my money the Land Cruiser, any style, is better! We ran trails last weekend at Tuttle that built broncos couldn't get up. If I recall you were both in my rig when we ran some of um
Tech - Marc, I'd start by disconnected and removing as much of the harness as possible and getting out of the rig so you can check for fray, bad connections, etc. Be sure to label that switches as you disconnect and take yer time.