Rear Axle Question - What would you do?

I have an 8 3/4 with 3.23 suregrip in my barracuda and actually like the gears. They go down the freeway ok but are not too high that it is a dog. I wold probably not go with option #3 though.... 1 ton axle, are the rear axles full floating? If so, that is way overkill and way too heavy for your application. I guess my vote is option #2.