Originally Posted by Mark98SS
IMO you're fighting a losing battle running a posi in a drag race application. My Eaton posi in the 9" lasted about 50 passes with BFGs before it quit posi-ing. Depending on how long till you do a rear upgrade I'd either get a spool for the current 7.5" rear or a complete used 7.5" posi axel assembly. Just my opinion.
the posi in my 9" lasted through probably 20-30 passes and 2 years of daily driving. I now daily drive a full spool.