Not being very gear or transmission knowledgable I can't figure out what a AEV ProCal will get me for the $150, but my instinct
tells me I'm missing something.

My JK is a 2011 auto with 4.88's and 34.6 diameter tires.

Everyday I drive by two roadside radar signs, which show my speedometer is off by only 1 mph while driving at 30 mph. Does
this mean since my speedometer is almost correct that my odometer and transmission are performing efficiently, as stock, and
the Jk's computer is happy? Or, is there something the AEV Procal will address that will sync all of this and make my Jeep run
better?

I know the other benefits the AEV ProCal offers, I am just trying to understand the computer, transmission, odometer etc…

Thanks

 

It will correct your shift points, biggest benefit. Just get it and don't worry about it. Works perfectly on my 2011.

 

and mine for sale for only $100.00 in the for sale section.

 

Just got 35" on my 2011 but using 3.73 geraring on a 6sp. I know I don't have to adjust shift point but does an AEV procal could be benefit apart shut off my tpms light and recalib my speedo? And yes I should regear to 4.88