My rear end is going out and it looks like the most cost effective fix will be to get a housing with gears from a local junk yard. I'm thinking about going to somting stronger like a 12 bolt as long as i'm replacing the rear axel. The problem is that I'd have to get axel shafts for the new axel instead of using the ones I have now, an extra $200. Would it still be woth while to upgrade to the 12 bolt if I can find one? I plan on turbocharging my 6.2 Diesel and getting some 33" tires so I might need a stronger axel but my main concern is carrying capacity. Givin that the rear axel is already supporting 2600 lbs it seems like it will be pretty easy to go aver the axels 3550 rating with just a trailer and some stuff in the back. How well do 10 bolts hold up to being over loaded? Are 10 bolts made after a certain year stronger than others? Also, how hard to find are semi floating 14 bolts? If I find one will I be able to use my stock brakes and wheels?