"Brian Turner" > wrote in message
om...
> I was recently involved in a rear end collision with my 1999 Miata.
> The impact broke one of the brackets that holds the differential into
> the car. Since the bracket is part of the one piece differential
> housing, the shop is going to have to find a used complete rear axle
> assembly to replace it. My car came with a Torson LSD and I want to
> make sure that is what they put back in the car. My question is how
> to identify the Torson form a standard diff. Are there any external
> markings on the diff housing to show that it is a Torson? Also, did
> 1999 Miatas come with anything but a Torson and should I even be
> worrying about it?
>
> Brian Turner

The differential housing is of 2 pieces. The aluminum portion (your broken
part) is most likely interchangable with a similar part. The torsen is in
the iron portion.
Unless you know the VIN of the donor car, a torsen differential can be
determined only by visual inspection.

Chas Hurst