Been thinking of this for a week! Stock weight 69 Super Bee automatic STREET car with 550 horse stroker being built now. My plan was to have the current 8 3/4 freshened with whatever it needed and buy axles. My resto buddy just picked up 2 69 B body Danas. He has been bugging me for the 3:55 8 3/4 for a year anyway. What will I spend on the 8 3/4 with parts and labor? I realize it's a vague question but is a Dana strong enough to change the fluid and take a chance? I've been thinking of a cost analysis trade of what I should be willing to pay him. No, we haven't talked money. Anyone?