BlueHemi1500
Active Member
Hello all,
I am getting new tires this Saturday details are below:
Truck 2020 Laramime - Level 1, 4x4, 5.7 non-e-torque, 3.21 rear gears, 5.7 bed - no mods other than a few cosmetics and a few tweaks for Highbeams on and enabled my bedlights with the tailgate down and warning light in the dash.
Current tires/size factory: Bridgestone Dueler H/L size 275/55/R20
New Tires/Size: Bridgestone REVO3 A/T style new size being installed 275/60/R20
Now the questions request for help below:
Revs/Mile I have been looking on several sites for the data - I have found values that range from 612 to 632. I have looked on TireRack/Bridgestone-Firestone/tiresize.com.
Thanks in advance for reading, your advice, knowledge, and skill.
BlueHemi1500
I am getting new tires this Saturday details are below:
Truck 2020 Laramime - Level 1, 4x4, 5.7 non-e-torque, 3.21 rear gears, 5.7 bed - no mods other than a few cosmetics and a few tweaks for Highbeams on and enabled my bedlights with the tailgate down and warning light in the dash.
Current tires/size factory: Bridgestone Dueler H/L size 275/55/R20
New Tires/Size: Bridgestone REVO3 A/T style new size being installed 275/60/R20
Now the questions request for help below:
Revs/Mile I have been looking on several sites for the data - I have found values that range from 612 to 632. I have looked on TireRack/Bridgestone-Firestone/tiresize.com.
- The size makes a difference in setting the calibrations for correcting my speedometer after the tires are installed.
- the different websites also disagree on the diameter of the tires - I think that the proper size is 33.0 inches.
- Now a Question - Is a 33.0-inch tire one of the preprogrammed tire sizes in the truck computer? If not will I have to reset the ABS brake system with the increased tire size?
- I have my OBD-alpha - I am not very well versed in making changes other than the above few trivial changes (low risk), changing tire size and adjusting brakes are a much higher risk/safety problem.
- I also understand that the upsize of the tire change will also affect the transmission shift points.
- I also understand that the speedometer will now be incorrect from the factory settings - an increased risk of speeding tickets and improper mileage being accumulated. (I base most of my maintenance based on mileage) along with time intervals.
- tire size change steps
- update the ABS system
- any other changes required/best practices
Thanks in advance for reading, your advice, knowledge, and skill.
BlueHemi1500