Changing crankshaft bearings with the engine in the car.

Max1196 said

What about the cam bearings? They're just as old/ wore as the crank bearings.

Click to expand...

I bet the cam bearing wear is half as much or less since it turns at half crank speed, and has a constant load.

Crank bearings do much more work than cam bearings.

You'll be fine doing it in the car, old bearings come out easily. Change the oil pump while you are in there with a new standard volume pump.