Front diff size

Hi y’all, was trying to find out where I can get info on which front diff I have in my 2020 TRDpro, I’ve seen 9 in and clam shell front diffs in my research, are they one in the same? Are they different? How can tell what I have? I’ve tried searching other threads on this forum and haven’t been able to find anything related to my query, maybe I’m not using correct search terms but if someone can point me in the right direction or just flat out knows what toyota used for the 2020s or Still uses that would be great, thank you guys

 

Add on, I know it’s stamped somewhere on the diff itself, but unable to locate it, maybe it’s under the skid plate, but seems like there is a lot of stuff covering it, I don’t have a lift so crawling under the truck is a challenge at times

 

9" clam shell