Lets give the example of upgrading to a 37" tire By using cross multiplication, we can determine that in order to have the same RPM vs. speed are effected, even causing a disruption of the shift pattern on automatic transmission equipped trucks
#2014 dodge 6.7 cummins rear main seal iisues upgrade
Over the years, these assemblies have proven themselves relatively reliable on moderately used trucks running stock, or close to stock tire size and power output For those of us that demand substantial power increases and larger tires, there is room for improvement to improve the reliability and performance that they can afford One of the best upgrades we can recommend for anyone that has increased tire size, is that of a ring and pinion ratio upgrade As previously stated, most of these trucks came factory with a 3.73 ratio, designed to have a proper run out with a stock size tire (roughly 31") But as soon as you upgrade to a 35" or larger tire, all of a sudden your RPM vs. 2016 - 2022 Canyon/Colorado 2.8L Duramaxīeginning in model year 2003, Ram went away from Dana as their axle supplier and moved to AAM, American Axle Manufacturing, which had already been adopted by GM for use in their heavy duty applications Up front, Ram's are treated with a 9.25", while the rear receives an 11.5" From the factory, these housings were stuffed with either the popular 3.73 ratio, or the 4.10 most commonly used for heavy duty towing, as it delivers higher RPM's at lower speeds in comparison to the 3.73 ratio.