Another thing to keep in mind is that we offer brand new Dana 44s built for TJ with Superior chromolly axle shafts. Depending on the locker type, we have had customers find that it was less expensive to go with a new, custom built 44 instead of a used one. They can start at under $1500.
We have several club members running our custom axles who had bad problems with their 35. So far, they have all been happy with the upgrade.