I'm new this forum
I just upgraded my 2019 A/T Taco 4x4 with 33" tires. If OEM gearing is not good with 33" worse.
I have crunched all the numbers regearing with 4.88 & 5.29 with 33" tire. Note: Not planning at any time to go with larger tires.
My comparison calculations are based on the M/T version which I think is a great engineered version. This said 4.88 on the low end, combinations for 2nd through 4th show are very similar to the M/T while with 5.29 are slightly higher on 5th & 6th, where most of the time it is used, is higher compared to M/T. This said I believe 5.29 is more acceptable acceptable on the high end performance. On my uneducated opinion has excellent low end ratios making it a great workhorse but probably a touch low on final trans gears for the everyday single vehicle user
In my particular case I don't do any extreme off roading only that needed for snow and conventional off road driving. Mainly use my Taco for everyday driving, rolly & twisty alternate/side roads, occasional +6000 ft altitudes and driving highways in Mexico at higher than US speed limits 90/100 mph
This is one of many comparisons I have made to compare M/T vs A/T versions. These calculations are based on 3000 rpm that is 50% of max rpm nevertheless lower than peak torque. The lower part equates to how many RPM's does the 3.5L engine needs to turn with 4.88 & 5.29 to match M/T ratio mph speed for each trans gear. This said both 4.88 & 5.29 will do the job. Here lies personal experiences with different final gear combinations where the M/T has a 3.05 A/T with 4.88 will have a 2.83 final gear and with 5.29 is 3.07. Hope all this info is not confusing to readers.
Will appreciate suggestions as what differential gear ratios you recommend based on personal experience using 33"tires. Also what gears are OEM quality. Have seen Revolution and Nitro as first choice. I know that Yukon is another named brand but have seen in different Taco and other forums that these do not come close to OEM standards
Thanks
John