i want to swap out the heavy ass 14blt rear axle in my 3/4 ton Chevy. i don't tow all that much. i was looking at swapping in a newer 5 or 6 lug axle from a 1/2 ton. does anyone have one they are willing to sell? plus these 4-something gears and 32's are killing me on the freeway! so, anything with 3.73's would be great. thanks.