how much of a "deal" did you get? because a set of 4.10 gears for a 7.5" rear would have been $179. now your gonna have to pay for a swap on an 8.8, AND removal and reinstallation of an entire rear end. instead of just a gear swap on an 7.5. plus, you wouldnt have ever had to worry about making too much power for a 7.5