I installed mine last weekend (iron complete kit with Ford LS carrier, 3.55's, upgraded girdle cover, and upgraded outer CV's) and am in love with my V again! By far the best upgrade you can possibly do for the V IMO.
I already had the RevShift cradle bushings installed and the whole car still feels much more stiff/solid, yet still rides like a Caddy. Should have come with a Ford rear instead of a German rear from the factory. The one major difference that I have noticed right off is there is now much less rolling resistance; and I already had the Gen IV rear. I believe that I am getting as much as 30% better MPG now as well.
A few points...the shifter is literally a hair away from the driveshaft, but does not touch. I have the RevShift trans insert which caused minor vibrations with the OE driveline, however, these have now been remedied as well with the 8.8 kit. Don't know about the carrier bearing issue, so I cannot comment.
The only thing that I have noticed is a pretty bad groan when at 1500 RPM in second, third, and really bad in fourth. That is lugging the motor though, and I can change my driving habits slightly to account for this. Honestly, it may be my trans as it is second, third, and fourth but not fifth or sixth gears. More to come later on with that.
Also, the OE drivers side exhaust contacted the differential and had to relieved slightly, and the girdle cover had a fair amount of overhang from the differential housing, so a grinder was used to relieve the cover slightly.
If you go through this thread from the beginning, you'll see that I was originally somewhat critical of Max and the amount of time it took to get the DIY kit to market. I believe that Max has brought an excellent product to market at a very reasonable price and could not be happier with the product or the transaction. Kudos!
And now, a few pics: