Looking for a way to replicate the function of a damaged turntable support (Kitchenaid part #4174943) that is no longer available.
Part sits on a square spindle (7/16" x 7/16"

that rotates when the oven is operating. The turntable support piece holds a round metal tray.
Thinking that perhaps Whirlpool turntable support #4375442, which also has a plastic center, might be adapted to perform function of the current Kitchenaid part.
Looking for information about the physical shape of the underside of the Whirlpool part. Hoping I could cut/drill it to create a square opening that would fit on the spindle in my current oven.
Here's a website with the part in question:
http://www.appliancepartspros.com/part_details.aspx?
part_id=3107716&pn_=4375442