Hi, first post. A question to all, but mostly to the ford guys. I'm thinking about lockers or limited slip for my expedition. I use my truck for every day,but I camp and fish ,and pull my casita trailer, I'm not doing heavy duty crawling with this truck. I do hit mud and snow and ice and rock getting to our fav dry camp hunt-spots here in Colorado. Which version of anti slip,or locker diffs should I consider installing and why? There are a few versions and I don't know the difference. Also thinking about 4-11 gears and a better load carring rear spring. .i don't have air bag suspension. ??? Thanks.