[problem solved] Stall converter with no gear ring

I got a built 727 transmission and 8” stall converter from a1 for my 5.9 magnum and was putting together today and realized stall converter doesn’t have a ring gear!
Do you need to buy one? Or are there flexplates with ring gear? Also my engine is externally balanced on the flex plate?
Are they welded on stall converters or pressed? Can i install it myself? Have no idea! thank you!