I had endless electrical problems and went with replacing the harness'. I bought a cab, engine, ignition and headlight harness from Saturn and went at it. The replacement was alot easier than I thought, though I've done alot of electrical work before. Still, almost all of the connectors are actually different from each other, or won't reach the wrong one, etc. so there's only a couple places you could screw up. If you do, it's pretty easy to find, since it's only going to be a couple places that you can. The only thing that was a pain was the coloring was different on the new, GI harness than the MOPAR manual says. So a red with white stripe might be grreen with white stripe, etc. The good thing is you only need to know the colors if you're tracing a problem, not really to hook it up.
My tranny seeps as well, but it's due to a stripped bolt hole. It just won't tighten to make a perfect seal. I also bought the MOPAR deeper pan kit. It's basically the pan, seal, and extensions for the filter and pick-up. I had to move the exhaust crossover slighty while installing, but you just loosen a couple bolts and shove it, then shove it back and tighten the exhaust when you're done. It gives you more fluid, and the fluid's coming from a lower point, so you don't end up with the tranny slipping in a turn if you're low from the fluid sloshing around. It's a pretty nice set-up really.
I suppose I'll need to helicoil the hole one of these days, but right now there's plenty more to do.
I remember reading something about them and bad welds along time ago. I could be wrong but.. maybe he will elaberate. 
