Upgrade your American Truck Simulator experience with the Ultimate Pack — the most advanced version of Realistic Truck Physics for American Truck Simulator.
The Ultimate Pack features improved truck and trailer physics, with carefully tuned suspension behavior for both the truck and trailer. Trailer suspension is more responsive and reacts more naturally to road conditions, bumps, weight transfer, and chassis movement.
The Ultimate Pack includes three carefully tuned presets. Think of them as three different physics mods in one package — simply choose the driving experience you prefer:
Flexible – Increased truck suspension travel, dynamic cabin movement, and soft, highly responsive trailer suspension
Realistic – Balanced truck physics with soft-realistic trailer suspension based on real-world behavior
Stable – More controlled truck handling with stiffer trailer suspension for increased stability
You can switch between presets at any time through the in-game Mod Manager.
Compatible with all default ATS trucks, plus dedicated support for a growing range of popular truck mods.
Compatible Truck Mods
Kenworth K100E by MrOverfloater
Volvo VNL670 by Aradeth
Freightliner FLB by Harven
Kenworth W990 by Harven
Mack R Series by Harven
International HX520 by Harven
Kenworth T800 by GTM
Peterbilt 567 by GTM
Lord G350 by Jon Ruda
Kenworth W900 Highway Killer by Jon Ruda
FREIGHTSHAKER CLASSIC XL by Jon Ruda
FREIGHTSHAKER CASCADIA 125 by Jon Ruda
FREIGHTSHAKER CORONADO SD by Jon Ruda
RVM Pickup Truck by Jon Ruda
PETE 362 CABOVER by Jon Ruda
PETE 579 NG by Jon Ruda
Peterbilt 389 Glider by Jon Ruda
Rezbilt 389 by Allen Rezbilt
Additional truck mod support is added regularly through updates.
For installation instructions, read the README.txt file inside the downloaded ZIP file.
❤️ Support Development
Since 2016, I’ve been continuously improving Realistic Truck Physics, investing hundreds (if not thousands) of hours into development.
By subscribing, you’re not just unlocking the Ultimate Pack — you’re directly supporting ongoing development, future updates, and expanded compatibility with new truck mods.
Your support truly means a lot and helps keep this project alive and evolving.
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