Any major money you spend on the 10 bolt would be a waste.... You can brace the **** out of the housing, but you'll still sheer the gear teeth right out of it, or break an axleshaft. If you dont run the ET streets it might live awhile, but you wont hook for ****, which somewhat defeats the purpose of all the power. And ditch the centerforce... At least get a SPEC 3/4 if you dont get a Mcleod unit.

 

Was looking at spec 4's last night. Lookin like a good option. Yea im going to def. get that 10 bolt the hell outta dodge. Now im looking for the most bang for the buck. Thanks, Brian

 

theres no such thing as bang for the buck when your trying to build a 550+hp project car.i dont think you know how much is involved for that much hp.and without a power adder 550hp from a NA motor is going to be a very difficult and expensive job,unless you have 10-15 grand to throw at a motor.