Hi guys so a I bought a 1996 75 series ute back at the start of march I took it out the first weekend and went 4wding, 4wd engaged all fine anyways I went away for about 5-6 and didn’t drive it, got back and went out on the weekend, I went to put it in 4wd nothing happened, no light on dash and no 4wd after further inspection transfer case is leaking oil, seal is being replaced but does anyone have an idea to why it isn’t engaging?? Cheers