My HR gearbox is solid at 49k and after having Japex put Nissan oil in (moly slip causing problems now it reported) and silky smooth, yes the odd clunk like a sliding bolt in gun but feels good, cold start 1-2nd little tight but all my cars have Been the same and clutch at nearly 50k is solid... I am sorry to say but if your car is shagged it's because the driver before you was pants. I would not say it is fair to blame Nissan the people who designed these cars are miles ahead of any of us in terms of brain power. 😜