Changing gear ratios
#1
Changing gear ratios
Just bought a 2012 4 door JK it already had a 4in rough country lift on it and 37" tires, the spare is still the stock spare. I'm looking into buy the hyline back bumper/oversized tire carrier to hold the 37" spare, with a new front bumper with a winch, at what point do you need to start thinking about changing the gear ratios with all the extra weight. I'm pretty sure it still has the stock 3.8 gear ratio.