99 Magnum Roller Cam Oil Pump Driveshaft

i recently got a Howards Hydraulic Roller cam for a BB, obviously not a cast core. Asked via their FB-Page, got the confirmation that it´s a billet core and therefore needs the bronze or melonized gear. Comp for example uses cast cores in their SB Hydraulic rollers, that´s what i run in my SB....with the stock intermediate shaft.

Long story short: ask Howards about your specific cam. If they say it´s billet steel then the stock intermediate shaft won´t work. If it´s cast then the stock one works.

Michael