JeepVT
Well-Known Member
I think it depends what you're after. If you are after MPG then gearing might make sense but I'd imagine it would take you a long time to get your money back by increasing the MPG a few digits unless you drive a ridiculous amount of miles each year and then I'd question why you have 39s in the first place. You might just be better off investing in a 2nd set of wheels/tires that are lighter and more road appropriate for daily driving. I bet you'd get a few MPGs that way and your trail tires would last longer.The BFG regional rep guy who runs local shop here in Salt Lake City told me he thought getting back to factory gear ratios should bring my fuel economy back up a bit. I don’t feel a lack of power or torque at all really. But he said it’s kind of like towing a trailer around all the time pushing this big of tire. It makes the load on the engine significantly more, and changing the gearing will ease the load on the engine. I’m no expert. What are your thoughts?
My concerns are less about power/torque and more with axle shafts and ball joints with bigger tires.
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