drive shaft sensor 12 bolt rear?

[FED 387]

use the set up from a 9 inch Ford housing--- find a convienent place to install the pick up holder---drill and tap a 5/16 hole in the 12 bolt housing to mount the pick up holder install the ring and set the air gap on the pick up -- when you are finished with the whole thing it will look somewhat like a MSD crank trigger set up --FED 387