Reply to "New cam shaft"

72-P, as was said, the stock under-engine crossmember was spot-welded in place. A '75 factory update was a bolt-in removeable crossmember ass'y and many Panteras have already had this done; check before panic-ing. The stock welded crossmember can be removed via Sawzall with the engine in the car, but it's truly more trouble than it's worth and takes much skill handling this dangerous tool. Note the pan drops about 6", then must slide forward about 8" for the oil pump pickup to clear the pan baffle(s) inside. This means the welded e-brake bracket a few inches in front of the engine also needs to be made removeable, too. Bite the bullet and pull the engine & ZF.

Once it's out, you can make the e-brake bracket and crossmember removeable, and do other necessary maintenence in the area. Sure, its a lot of trouble but the alternative is not doing engine work. And once done, the car will forever be easier to work on and worth more for the (factory) updates.