FOUND 8 3/4" Sure grip plate wanted

[Wing It]

Wanted: Internal sure grip plate as is shown in the picture. I am having a 8 3/4" differential rebuilt and the gear shop found one of these plates has a broken tab. It is a early 1970 car with a 489 case. Need to buy one plate. He says that Summit has them listed but when he ordered it the part was different. Let me know if anyone has an old Suregrip for parts and can help.

Thanks!

 

[446acuda]

A '70's- '80's 8.25 or 9.25 with a cone sure grip might use the same part. I can't find any interchange information though.