I put it off until I had two different axle under the jeep. Then I just bit the bullet. I dont regret it at all. I definitely would do that over T/C first.
Now all this t/c talk has had me reading all day. I just remembered I have another 231 laying in the garage collecting dust. I want to stretch the rear, but didnt want to replace the rear driveshaft again, so I am thinking about picking up a box4rocks kit after tax time and building the super long 231/231 doubler. I think it is about 7" longer that whats in it now, which would put my rear stretch in the 7" range. I hate jeeps.