I mean to really break it down, who would you put your money on at making the best gears for a Dana axle? Dana or an aftermarket company?It seems a bit far fetched to me, but at least you are doing your part to make America great again.
It dont think its a stretch to say that aftermarket gears are not on the same level as genuine Dana Spicer gears.
Its like buying Mopar sensors for the engine. OEM is USUALLY far superior to aftermarket.