2011 Gear Ratio Codes

Does anyone have the code reader for the 2011 differential gear ratios. My door tag has A/TM A02A/R155 and C/TR 202/FN13 this is on a 2011 reg cab 2.7 man trans 4x4 cant figure out exactly what this info means ?
Does the A/TM stand for axel / transmission codes ? then what would the C/TR mean, color / trim codes ?

 

I found a code reader but its for the 4J VINs and I have a 5J VIN

 

Maybe I used the wrong words. Im trying to figure out the gear ratio in this truck and dont know how to read the axel code

 

so how do we figure them out ?

 

My owners man does not seem to have any info as to what the ratio is. Does toyota have a websight with the info or maybe its on some type of spec. sheet for their vehicles. Sorry I prefer to see it on paper, humans make to many mistakes that cost me money. I am getting togeather a build for this vehicle and geathering information, thanks to all who replied.