Originally Posted by Max Capacity
I tryed to spin the bearing through the bag, it feels pretty tight, I could not spin it.
Not a very good "real world" test there
Here's a better test--brand new top hats installed with konis and epic springs. It's worth mentioning that the top nuts technically aren't torqued to spec as I'll do that on the car, but they are definitely tight:
They spin VERY easily and are dead silent.
Couple of questions for you. Are you using a torque wrench to make sure that you are tightening everything correctly? Given that repairs seem to work for a bit is it possibly you aren't getting everything completely tight and stuff is loosening up on you? Also, have you gotten an alignment by a good shop that knows what they are doing?