So I have an 06 S2000, lowered with Tien Flex Z coils, I'm running 255s in the rear. Even before I lowered the car I alway heard a click in the rear when coming off from a dead stop. Now this click has turned into a clunk

I have tried to retire the axle nuts and it didn't do anything, I went underneath and notice I have some play on the output shafts on the rear diff, the driver side has more then the passenger side, there is no in and out movement, or side to side, only up and down movement.

im going to try and post a video of it, I'm not sure if it'll work. Anyone have any idea what it could be? I hope it's not the rear diff going, I don’t drift or do burn outs or do hard accelerations, I do drive it pretty fast.

I can't figure out how to turn my videos into a acceptable file, if someone can PM me I can send it via Facebook messenger or Telegram

 

Just a hint, as I had something like this happen myself: re-torque the upper and lower ball joints. I was having the same issue, and I started checking the tightness of all my suspension components in the rear. Brake calipers, ball joints, sway bar links, etc... While tightening everything, I got 3/4ths of a turn on my lower ball joint with a torque bar. That resolved my issue.

Good luck!

 

Stock OEM differential? How many miles are on it?

Thanks!