I agree with the previous posts. You are going to be very unhappy with that high a numerical ratio on the road, unless this is for offroad use only. When you go with the stronger gears, everything needs beefing up in the drivetrain. Years of drag racing has proven to me, that EVERYTHING in the drivetrain must be compatible or the weakest link will break. I've seen universals twist off of driveshafts, transmission splines stripped, pinion gears without teeth etc. It's boils down to how fast you unload the torque to the drivetrain from the engine, and I would just go with stronger diff gears. Quaife will make you berylium hardened gear sets that are virtually indestructible, but they are VERY EXPENSIVE and then you have to wonder if the transfer case, tranny or clutch, driveshaft etc will handle that torque.
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