I need to replace the diff on my 240z i think it was swap by a previous owner.

These picture are from my 1971 240z and i figure that the way the

mustache bar is mounted my diff is a R200.

Anyone can confirm this would be realy appreciated

Thank`s Jean-P

Yes, that's an R200.

I'm with John, definately R200.

Thank`s guys actualy i was almost sure because the mustache is in the back of the car compared to the bolts that hold it.

And also i figured 3.9 ratio (matematicaly) and i do not think there r180 3.9 ratio.

I am good at math but i got the formula on the web and i cannot figure the 366 constant in there.

If you have a chance look at the right side bolt just over it the is a tinny hole more like a crack should I weld a plate on the (frame crossmember i dont know how to call it).

Jean-P