Again do you lot want my advice or what? Im sick of trying to give advice and getting it thrown back or poo poo`d! Look ive been a Nissan tech for 10 years and I work for Middlehurst where im a Skyline and 350 Specialist before this I spent many years and 1000`s of K11`s and K10`s over the years. I have attended regular training at NMGB in Watford and I have personally first hand diagnosed and rebuilt hundreds of boxes over the years. I can go into the reasons why Nissan boxes are generally very weak if anyone cares to hear this. Nissan use NSK bearings or NTN bearings both of which are very good but boxes still fail no one really knows why? I can say one thing, that being that the main component to fail is the bottom mainshaft bearing generally if the cage doesnt collapse and the box is noisy you will find severe pitting on the bearings and discolouration of the transmission oil.
Please if I am to remain on this forum is it too much to ask for a bit of respect? After all you have a valuable member in the form of myself and I will stop coming on here if you keep poo pooing my comments.