My rear axle is weeping oil from the seal, I looked up Messinks parts online and the US equivalent L175 shows two different seals depending on production number. The seal pics look quite different in thickness so has any one changed out a L1500 axle seal and can help with confirming the correct one. I have my right hand in a cast for tendon repairs and wish to order the correct seal and pull axle apart when hand is healed. Any help is appreciated.