Hi I bought a 1990 xj a few months ago after about 6 weeks it got really hard to put it in first then every time I was switching from 1st to second it made a really loud metal hitting metal sound, now it clicks when its in first and second and its really hard to get it in any gear. I was wondering what I should do, it has the ax-15 in it do u guys think it I should just replace it or get it rebuilt? Any feedback would really help and if I should replace it what tools would I need and how hard is it to do?