904 Steel Planetary Upgrade

I just drilled a hole in the lower vb casting direct clutch feed channel 5/8" back from the front and 7/16" from the closest screw. I used an 1/8" from the channel side so the bit was centered in the channel, then followed it up with a 3/16". I'll go buy a tap and find the right allen head screw and length to where I can use a lock nut under it. Then I'll need a large hollow drain plug to weld in the pan over it so all you have to do is remove the drain plug, loosen the lock nut, adjust the volume by turning the screw, tighten the lock nut, replace plug and refill.