My next upgrade on my truck will be a beefy rear end. I have a 90' Suburban 1/2 ton w/ 10 bolts front and rear. I want a 3/4 ton axle in the rear, but I dont know what one to get, does anybody know what year range and type of truck w/ the 3/4 ton axle that will bolt on? I am going to try an upgrade the 6-lug to and 8-lug up front also(is that possible?). Is there any way to strengthen the front axle?