3.23 3rd Member

Yea i just bought a Open 3.23 3rd member for $175 to go into my 742 8 3/4 rearend housing. I was wondering should i get the suregrip or leave it as is. Putting it into my 65 cuda once i get a bigger engine. Also what does it mean by its open 3.23?? Im not racing or anything i just want a fast street car which is why I'm building the rearend. Thanks