pros and cons of a 9 3/4 rearend

The dart I have is a 67 dart gt with a 675HP 426 max wedge motor.I have a dana for my car with 3.73 gears and posi.I love it because i can beat the PISS out of it all day and it just says more baby.Now the dana,s only come in hemi 4 spd cars and 440 6 pack 4 spd cars,and trucks/pickups.Most people just get a truck diff and cut the ends off and install 8 3/4 axle ends and get axles for it,done deal,now try to brake it.If you intend to do what I do,the dana is the way to go,if you are more gentle on your car and do not the bucks to spend,the 8 3/4 is fine and a great to work with,as its behind all automatic hemis and 440,s,383,s and 340,s.mrmopartech