I had 33" tires with stock 4.10s in my 85 4Runner for a while. Sure, the odometer said I was going 60MPH, but my GPS said I was doing 76! Sure, my trip meter said I got 200 miles per tank, when actually it was more like 285. You really don't lose gas mileage like the newer taller tires are telling you. Still, switching to 4.88 can't be beat. Holding a true 75mph up and over freeway overpasses and what not is a nice thing.

85 4Runner - With NEW Marlin 4.7 Gears!! It's a whole new beast!