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Cruise set at 55 on flat ground running in 6th gear....shows current mpg at 19. I have 37" tires, speedo calibrated (within 1 mph of my phone) and running stock gears (It's a sport) - if I change gears to 488 or 513 can I expect to see the upper gears? Right now when going downhill with...

very nice - I believe I will be going this route

interesting - I also disabled the seatbelt minder but it did not affect the autostart....did you use superchips?

I appreciate that link

How big of a spare tire will fit in the factory mounting on the gladiator - I'm running 37's and have factory spare lol

Anyone have real experience to share with 37" tires and re-gearing? I think my stock sport is 3.73....never saw 8th gear until I calibrated speedo - now am wondering if it is necessary to re-gear as I do see 8th gear occasionally and 7th often. Any experience? What will I gain and which is better?

I bought a superchips flashcal to calibrate speedo for tire size (37") - while connected I turned disabled the autostart option, however the flashcal pops up a message saying to also unplug the switch under the hood....I unplugged the one nearest driver side but now I get an idiot light and...