The Ride-Rite Red Label Extreme Duty Air Helper Springs # F56ZR is the kit specifically made by Firestone for your 2020 International CV series truck. These springs will provide up to 7,500lbs of support to your factory leaf springs. I have linked the installation instructions near the bottom of the page so you can see what all is involved for the installation.
The Firestone Air Command Heavy Duty Air Compressor # F2097 will allow you to adjust the air pressure in the air springs from the cab. view full answer...