power steering pump question

[prostreet64]

I have a rebuilt power steering pump for my 79 TransAm that I just installed. The front bracket uses 2 of the 4 threaded holes to mount to the pump body. I thought the other 2 holes were just for different configurations but the lowest hole started leaking and then the fluid came out like an oil pan drain!  Do these pumps have a drain plug hole or is something way wrong?

[Wallington]

You mean this area? All 4 on my spare are blind holes.

https://m.media-amazon.com/images/I/61O-wziJZbL._AC_SL1500_.jpg

The rear studs commonly leak when the o-rings are missing or damaged.

https://images.saymedia-content.com/.image/c_limit%2Ccs_srgb%2Cq_auto:eco%2Cw_700/MTc0OTY0NTQwNjg4MDQ5NjA0/replace-your-power-steering-pump.webp

[prostreet64]

Yea, in your first pic it is the lower hole on the left side. I know they are supposed to be blind holes but that one is leaking like a drain. I am going to try a bolt with the flange type head and a washer like used on an oil pan bolt; this should seal it up, I hope.