Don't forget angly...angly!! LOL!!
I beleive the mustang rears are still a little wide for early Novas. They may work ok in 3rd gen+ though.Explorer rears are 31 spline true but are offset, if mustang rears are centered and the right width then it is a "easy' swap. If I have to cut it down then I am going to use the 9" I have and cut it down.
clutchdude are you there??