So recently baught a 2006 350z grand touring with a lsd diff. I replaced the clutch with a stage 2 and the flywheel with a single disk. I had to make a new slave cylinder arm for the clutch because the oem one was to small. Now I ran into a weird problem. I'll turn off VDC and when I'm in a low gear and get the tires spinning the rear end will kind of shake or made a repeating loud slamming noise and this never happens unless the tires spin. I replaced the diff fluids but it still happens. The only other solution I can think of is on the slave cylinder arm that I made I think I made it a little to long and there no play so could it be something with the clutch? If it's not that the my next step is to get new diff gears which is like $1000! Any ideas?