Originally Posted by jaywa
take PRECISE measurements to make sure P-Bass aftermarket pickups will drop right in.
That's most important unless you don't mind altering you bass a bit.
As for as Pups go there's a lot of good ones out there depending what you're looking for. The above mentioned dimarizo's are a great pup. Pretty much can't go wrong with Semour Duncan 1/4 pounder or Aniquity ll IMHO.