8 3/4 or Dana 60

well the only thing that should keep you from doing an 8.75 is cost... you can build a brand new strange 60 for about 1300 bucks...

the 8.75 has been used in 10 sec street cars... there are guys on this site that will vouch for that...

more than likely you will never need a dana unless you stroke the crap out of that SB or boost it... or go with a stick but you'll break the trans before the rear...