 the the fork inside the transfer case you know to lock it into four-wheel drive but um you know somebody somebody needs to spend a little bit of time on it doing some diag make sure that when the switch is engaged that you know you are getting voltage and ground at the motor itself and if you are real realistically i don't think that motor is going to break the bank i don't think it's going to cost too awful much to replace it so get a hold of a good shop you can always call marty's you know find out um