I replaced the ignition lock cylinder, ignition switch and then the stearing column all because I lost my keys(long story and never again, i have 3 sets now). It drove fine about 15 miles the next day. The following day i get going down the road and start hearing a "grinding" noise from under it around the middle/back. I start looking around and notice the 3 three buttons for my 4x4 on the dash are not engaging, like they have tension behind them. Thanks in advance!!!!!