found this in my differential fluid

[brainhulk]

this is the first time I'm changing the diff fluid on my s2000. It has about 21k miles. I bought it at 19k miles. I noticed the car pulls to the right a little on throttle, I swap the rear wheels and it pulls to the left. I've been playing with pressures but new tires are on order.

So today I changed the dif fluid and found this

What do u guys think?

 

[PottedMeat]

what is it?

metal?
plastic?
magnetic?
chip?

too small to be a tooth right?

 

[NutBucket]

How about a real camera? Any funny noises from the rear end?

 

[DaTT]

I certainly hope you didn't find the quarter in there...

 

[Ferzerp]

That's a dime.

 

[brainhulk]

Its metal. And now the dime is just for size reference...

Ill have to use my real camera later. And no funny noises

 

[DaTT]

Could be a piece of a tooth.

 

[overst33r]

99% of the time on S2000, any pull under acceleration is tire pressures. are you sure they're within 1psi of each other?

 

[brainhulk]

99% of the time on S2000, any pull under acceleration is tire pressures. are you sure they're within 1psi of each other?

Yeah checked that. Air pressure was same

 

[overst33r]

Yeah checked that. Air pressure was same

Have you checked the torque on your axle nuts?

http://www.s2ki.com/s2000/topic/929843-rear-axle-nut-tsb-diy/

EDIT: Nvm, just read that you swapped wheels and it pulls to opposite side. That doesn't make any sense for axle nuts.

 

[brainhulk]

Have you checked the torque on your axle nuts?

http://www.s2ki.com/s2000/topic/929843-rear-axle-nut-tsb-diy/

EDIT: Nvm, just read that you swapped wheels and it pulls to opposite side. That doesn't make any sense for axle nuts.

I will look into this. Thank you