hey guys i have a question, i recently purchased a 99 superduty f250 5.4l v8 and i only have two wheels turning even in 4wd, the "ls" sucks, so what im wondering is if i should spool or weld my rear and front diffs, i almost never tow trailers or anything heavy this is just my new toy, i do drive it quite often and i want it to be able to do good on the highway, the biggest tire i'll run is a 35 bogger, i've ran a spool on my toyota and never had a problem but the ford guys are saying NO dont spool or weld, any tips?? thanks guys