Please help! I have a 1996 blazer and i was driving and all of the sudden the speedometer stopped working and it will only shift from first to second. I checked the code it threw and it was the vss. So we replaced the vss on the tail shaft of transfer case and still nothing. Checked all the wires and they are all good. Someone told me there is a vss inside the tranny is this true? If so how do i get to it? Please help