Originally Posted by aviationofficer
Yeah i checked the tag. I thought it had a 231 till i looked.
If you can, separate them and count the number of splines if you are not 100% sure. IF it is a 23 spline input, run it unless you plan on an SYE. The only advantages a 231 offers over the 207 are better aftermarket support for SYEs, etc and a 2.72 gear ratio vs the 2.62 on the 207.
EDIT: I just reread your original post. The 87 uses a mechanical speedo. The 2002 TC will be electric. If the spline counts match up, you will still need to adapt the new TC to a mechanical speedo setup.