I am currently carless cos my t50 is in bits on the floor due to a rebuild being carried out. Has anyone out there done any of these cos the main question about them i have is how much preload on the output shaft should there be? (how tight do i do the locknut up) also where have ppl gotten the bearings from and have there been any hassels locating any of them... eg centre bearings on both shafts due to their wierd shape. my synchros all look good but at the right price i might replace them, so where would be the best place to get them. are they available aftermarket? or genuine only?