This is a mainshaft for a Borg-Warner T5 transmission (now made by Tremec) used most commonly in Ford mustangs from 1983 - 2010. Yours is the updated "world class" version which is more desirable. They tend to wear out at the very front from poor oiling (see picture in link) so you should have no trouble selling yours as a good replacement. I suggest listing it for the fox body 83-93 v8 mustangs as replacements are in highest demand for this model.

This is a mainshaft for a Borg-Warner T5 transmission (now made by Tremec) used most commonly in Ford mustangs from 1983 - 2010. Yours is the updated "world class" version which is more desirable. They tend to wear out at the very front from poor oiling (see picture in link) so you should have no trouble selling yours as a good replacement. I suggest listing it for the fox body 83-93 v8 mustangs as replacements are in highest demand for this model.

References:

http://m.ebay.com/itm/171541274613?_mwBanner=1 (eBay listing of shaft - yours...

https://en.m.wikipedia.org/wiki/Borg-Warner_T-5_transmission (shows all vehic...

https://www.google.ca/search?q=t5+mainshaft&safe=off&client=ms-android-googl...