I got some new front and rear complete axle and diff with 4:88s I got 2 questions. First my truck is a 98 with the push button 4 wheel drive the diff is outta a older truck like a 95 or so. Mine only has the one plug this one has 2 one for the actuator and another for what I guess is a sensor? Will this work can I just wire the new one in. Second the rear axle he said it has some play in the front output something about mabye the crush washer he thought it was a easy fix but wouldn't you have to take it all down or not? He said I could run it but it would need to be addressed sorry if I seem dumb but I know nothing about this kinda thing.