you didn't use the c-clip that keeps the inner shaft from sliding into the birf?
on the poly performance shafts there isnt a spot for the c-clip to keep the two from sliding into eachother, i didnt use the most inner c-clip either in case i was to ever break a birf, i also didnt use the c-clip on the hub side because i like to take my knuckles off the camo method.
Are the knuckles shimed properly?
i didnt use a tool or anything to check the preload so hopefully your right. im going to have to check that today
