Hi, I am looking for some advice. I own a Navara ST 2013 auto. I do like the ute very easy to drive and comfortable but the 4x4 just doesn't work/engage. I had the 3 switches replaced on the gearbox after the 4x4 indicator on the dash started to flash then not come on and 4x4 wouldn't engage. The switches lasted less than a year before giving up the ghost. Is there more to it than just replacing the switches, I have read that the prop shaft end seal should be swapped out for an upgraded one that stops water ingress? Annoying not having 4x4 on dirt roads. Would like to get the car repaired but not sure it is worth it. Furthermore, now the LCD display on the dash flashes or doesn't show at old. If I turn the car off they tend to come back on. Cheers