so im thinkin about an axle swap and have a quick question. For those of you that have 2.5 ton rockwells, what sort of highway speed are you able to maintain? From the research Ive done, there are no re-gear kits available for the 2.5ton rockwell that would allow you to change from the stock 6.17(i think) down to 4.56 or something more suited for highway speeds. only reason i ask is they are beefy axles and i found a pair for cheap. since i eventually want to run 46" tires it might be a good upgrade for me. any thoughts?