Ok I Have a 1999 Ranger 4.0 V-6 well my 4x4 was barley engaging in 4 high and wouldn't engage in 4 low so we replaced the transfer case motor for the 4x4 and the old motor had 8 wires on it and the new one has 7 so we installed it and on the dash its saying it isn't correct ( 4 high/4 low flashing) well we was told the 8th wire was a ground wire so we hooked it up where it was and it still isn't correct....any sugestions