Help indentify this SureGrip type pls.

I saw this in ebay: Item number:350242702455 pls use google to view it, I couldnt post the link here. Seller said that 7.25 SureGrip, but its kind of different with mine.

My 7.25 Sure Grip look like this:


Are they the same sure grip type?

How many suregrip type of 7 1/4? Will that 7 1/4 suregrip fit my differential?

Thank you so much,

Andy.