1965-69 Pinion Shaft ,all cars.  This shaft is precision made, using superior materials  compared to  the stock one, providing  twice the strength of the original. I highly recommend this product for  those building a High Performance diff. for your Corvair.  For more details or any questions, don't hesitate to call Rafee at 918-753-2486, or e-mail rafee@rafeecorvair.com .