MJZ,
I do not believe that this is going to be resolved by a new rear jugg. Let me try to explain my thinking on this.
I believe that were not seeing this in the front due to it gets more air there and keeps the engine within tolerances. I believe that the motor is expanding to the point that things end up moving a tiny bit and harley hopes that the new Thicker gasket will make up for the differences in tolerances. So far in 2 tries it hasn't, but they say replace the jugg, they didnt say exactly why this is their course of action. Wondering if replacing the studs with race studs would stop some of the expansion and help

Again this is my thinking, that the cylinder studs are expanding and contracting too and with that the movement comes. I believe these juggs are thinner do to the larger bore than the 103" and they are not handling the heat and over X period of time for me about 5000 miles the jugg / gasket finally have enough wiggle room that the oil under pressure is being forced byt he gasket into the bolt holes and then out the bottom of the jugg.
I think harley is counting on the people that dont ride a lot to only see this one time maybe a 2nd time over their 2 year warranty and then its off to extended and harley is safe. The people that get out and ride a lot more like myself are seeing this over and over and well this hopefully fixes it, but I don't think it will.
With the on going issues I am forced to start considering going to the 113" motor upgrade as they are not seeing this problem, the juggs are bigger, the heads are different and well all I have to do is bore the cases and pay some money. The other consideration is to just use the millenium / axtel juggs and new pistons and go to the 124 and get some head work done and not have this problem.
Thinking out loud to hire an attorney is about 2500 dollars to start then whatever else from there. A forensic mechanic another 2500 - 5000. that is 5000-7500 and no guaranteed outcome. Might have to consider paying 6k and just get it done right. /shrug frustrating to say the least.
Back of my mind I keep saying to myself I should have just replaced my 05 that i totaled with another 05 / 06.