37s on stock 3.73 or 4.56

[1SIKDZL]

Not sure why on mine, but I was right above 2400 rpms on mine at 75 mph. That was on my toyo open countries that measured 36"

 

[1SIKDZL]

With the 3:73s back in my truck on 37" toyo MTs my truck is right around 2100 at 75-80 mph

 

[diesel53]

Blake must be special haha.

Whats your efilive tune tire value set at?

 

[1SIKDZL]

Not sure, I will have to check. However I know that my speedo is dead on because I have double checked my speed with my gps and it reads exactly the same as what my truck speedo says.

 

[NinjaMax]

I've been running 4:56's with 37's for over a year now..kinda high revs on the interstate but for any towing, mountain/ hill or playing around on the street light to light...4:56's are awesome..!

 

[dirtyduramax05]

well im going to be going from a 37 to a 40 so i will be doing the 4.56 and the six speed conversion since i do play from light to light and pull heavy loads and im hoping the 6speed will help me out on the highway