Spool on the street?

VERY bad idea, ANY amount of moisture on the street and it's like being on glare ice. Rounding corners drags a tire and can break an axle, and not always when you are turning a corner, it can stress and break when least expected.

Nodular/Yukon (Tru-Track) 8.75 with a Sure Grip. Plenty for most any street strip car unless it's a big power/heavy car on slicks. Brand new drop in will run about $1250.00

Detroit Locker? Strongest of the 8.75's but they are noisy. I run one in my 71 Demon and am going back to a Nodular 8.75 Sure Grip, I just don't like the racket when cruising and probably don't need the extra strength on any tire that's streetable. These run a hundred bucks or so more than the Nodular/Yukon Tru-Track unit.

For a bit more $ you can buy a custom built Dana 60 from Cass and be done with it. In your case that would be my move.