This is the only one I found that held up with a high volume pump at over 8000 rpm.
Milodon Oil Pump Driveshafts 21535
This mopar style I sheared the bottom at the pump on two of them. Note the difference in price also. I never had any luck with the mopar style.
Mopar Performance Oil Pump Driveshaft and Distributor Gear Sets P3690874
If your using a billet cam you'll need a bronze gear. any other cam use the one below. Its the pump end that fails. Install a new bushing and ream it perfect to size. Heat is what kills them when they are tight. High volume pumps and rpm's are their enemy.
Milodon Oil Pump Driveshafts 21530