Truck Dana
If you're building a street car an 8.75 will stand up to a 700HP motor, cause you'll have no traction. Now if you go racing, you gotta spend the time to back half the thing and get it set the way YOU want it!
I wouldn't be happy if I had gone with someoneelses' suggestions and it didn't work.
Do some more research and decide what you want, then get it done.8)