i agree with camaroracer. a beefed up 10bolt will be strong and cost half of what a 12boltwould cost.
if you are planing to go for even more power in the future, i would suggest a 12bolt over a 9inch. both cost about the same and are capable of holding all hte power a street car will ever make, but the 12bolt has less internal resistance. that leaves more power making it tothe ground.
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