Anyone running 513's and 33's on an auto, if so what do you think. Any info would be great.

 

I like it...The JK doesnt feel too sluggish anymore, especially with an auto trans....My highway use is only limited to 55mph max in my area...

 

Auto, 5.13's and 295/75/16's (32" actual height)

Fine for everything except O/D off towing.

 

Im running 5.13's with procomp xtreme At's the tire measures 32.25" on the Jeep. These tires arent any taller than stock but alot heavier and wider. My trip to work is only 15mi and 3mi are interstate driving.

The only reason for the taller gears is that I am going 35" or 37" in the near future. I just need to wear these out first.

I have great power but fuel suffers. Hills no problem with cruise. I have small hills - lot of flat spaces

Stock 3.73 gears @ 70mph 1900rpm - 18 mpg (lots of downshifting)

5.13 gears @70mph 2700 rpm - 16 mpg

If I take her easy 55-60mph and can squeek out 17-17.5 mpg

When the new 35's get on I will be in a more acceptable rpm range.

There is a link to a chart around this forum. I think its a Shockworks excel sheet. Its pretty spot on.

You will definatly need to get a programmer - I have the Superchips Flashpac