Just wondering why you would want to go down in the ratio? I think you would lose some low end performance. I know it boils down to final drive ratios but I don't see the advantage of going with small rear gears. With the addition of the extra gear for the manny swap I would think it would balance it out. But again without doing the calculations no way of knowing. Plus a deeper gear will make that low end torque a lot of fun. I do agree a LSD would be an awesome addition.

__________________
Current garage:
'03 4.6is Proud X5 Peasant
'93 Jeep Cherokee (XJ)
'07 Jeep Liberty (KJ)
'88 Jeep Comanche (MJ)