stereo_luver
Junior Member
I've had my 2020 1500 4x4 Bighorn for almost 2 years. It's time for new tires and I'm wanting a little more clearance and a better look. When purchased the dealer had installed the Mopar level kit with 33x12.5x20 Nitto RG tires. I'm thinking I'd like to go up in tire size to a 35". From what I'm researching I'll have to purchase a complete new lift kit to get the extra 1.5" of lift I'm looking for.
In addition to the new larger tires I'm thinking I'll need to have the transmission shift points adjusted as well as the speedometer calibrated for the larger tires. The truck came equipped with a 3:92 gear so I should be fine there. The acceleration and shift through gears is great with the 33" tires and the 3:92 gear. I'm hoping not to lose too much of that performance going up in tire size.
1.) Is a complete new kit required for the additional 1.5" lift I need? If so which is the preferred supplier?
2.) Will the dealer make the adjustments to the shift points and calibrate the speedometer? (I'm a retired technician out of the field of mechanics for over 20 years now. Can I do this on my own?)
3.) How much of my current performance can I expect to lose going up in tire size?
4.) Am I forgetting anything while planning this upgrade?
The truck has 46k miles and will still be under the 60k mile warranty when I do this upgrade. Do I wait until I am out of the 60k warranty period before doing the upgrade?
Thanks for your input.
In addition to the new larger tires I'm thinking I'll need to have the transmission shift points adjusted as well as the speedometer calibrated for the larger tires. The truck came equipped with a 3:92 gear so I should be fine there. The acceleration and shift through gears is great with the 33" tires and the 3:92 gear. I'm hoping not to lose too much of that performance going up in tire size.
1.) Is a complete new kit required for the additional 1.5" lift I need? If so which is the preferred supplier?
2.) Will the dealer make the adjustments to the shift points and calibrate the speedometer? (I'm a retired technician out of the field of mechanics for over 20 years now. Can I do this on my own?)
3.) How much of my current performance can I expect to lose going up in tire size?
4.) Am I forgetting anything while planning this upgrade?
The truck has 46k miles and will still be under the 60k mile warranty when I do this upgrade. Do I wait until I am out of the 60k warranty period before doing the upgrade?
Thanks for your input.