i just had to replace rotors pads and caliper. now it looks like my axel seal is leaking. any advice on how to tell or see if it is some thing else. i was thinking maybe we didnt tighten the nut enought. not to the piont where u cant turn it but a little more. the other side is fine. no the splined shaft was not stuck in the bearing with the rotor. any sugestions would be great.