What This Mod Does:
This mod takes the best of Physics mods for ATS and combines them, and adds support for modded trucks. It also adds mod truck support for unlimited camera mods. (mod is still necessary for some default trucks. Files are included, but some trucks are missing.)
This mod also changes the default FFB LUTs for Logitech G and Driving Force wheels to improve the FFB (Serves as a pseudo FFB fix). Honestly, as much as this is an improvement, I recommend the FFB Plugin found here:
(https://forum.scssoft.com/viewtopic.php?t=49772)
If you use MOMO's steering, disable that and enable this, as it will overwrite this mod & visa versa. This mod adjusts the same value so if you like that mod this should work for you all the same.
This mod also adjusts the clutch function in game. Double clutching should be much easier now, and you should be less likely to grind when double clutching. Eventually, I plan on creating a version that goes through and mutes the transmission grinding sounds for default and sound mods, and modded transmissions, but that is a toll order and will take an obscene amount of time. This was tested with synchronized shifting at 0 (off).
The other thing this mod does is produce more natural wear and tear on the chassis and other parts, which is a feature that was planned for a few separate physics mods, that never came to be.
Requirements (All on Steam):
This mod requires FRKN64's Realistic Physics, Eddie Yantz's ATS Physics Tweak (Dry Surfaces), and and Air Seat mod. Any other mods that modify chassis files or physics.sii should be below this in the load order for the changes in these mods to function.
FRKN64's Realistic Physics:
https://steamcommunity.com/sharedfiles/filedetails/?id=2254213086
ATS Physics Tweak (Dry Surfaces:
https://steamcommunity.com/sharedfiles/filedetails/?id=1814180686
AirSeat Ride:
https://steamcommunity.com/sharedfiles/filedetails/?id=1815419676
Recommended Settings:
All Stability Sliders: 0
Cabin Suspension: 0-25
Suspension Stiffness: 78
Driveshaft Torque: 100
Steering & Controls:
Below is the steering configuration I recommend using. I spent weeks working on getting the steering just right, as an IRL trucker. I've use the information in this post to make the changes, which explains how it all works.
(https://www.reddit.com/r/trucksim/comments/4a1gbu/people_with_steering_wheels_take_a_look_at_this/)
I Highly recommend using my files, or playing around with yours as described in the post above. As a trucker IRL, the default steering calculation is far too sensitive. It's still not perfect. IRL the steering cannot respond instantly to input, the way it does ingame. If you look at video, you'll see many tuckers making large, brief inputs, but not getting abrupt motions in return. This is because the input is translated through the steering box, and then through to the rack. This not only introduces a slight delay, but also dampens the effect of inputs. IRL, to maintain a straight line, with the wind, uneven road surface, other trucks etc. around, you have to make large enough corrections on the wheel to get an appropriate reaction from the wheels as they are on the tarmac. In ATS however, any input you give it is translated through the system to the wheels directly. I have tried my best to mimic the effect I spoke about, with what I could find online, and knew how to do. I've driven Cascadia's, T680's, a T880, VNL's, 579's, and a Mack IRL. I've tried to get to a close approximation of how they feel, but as I said, it's still sensitive and not perfect.
Steering Config Line:
There have been a few changes to some things in the game that can affect how the steering will feel. My current settings are:
"mix steering `dsteering - (0.32 * normalize(abs(j_steer?0), c_steer_dz) + (0.68 * (c_steer_func / 2)) * pow(normalize(abs(j_steer?0), c_steer_dz), 1.75)) * sign(sel(c_jisteer, -j_steer?0, j_steer?0))`"
So long as the total equals 1.00, you're good. I would say that 0.68 is the most realistic, as far as the actual rack ratio through the box is concerned. This would look like:
"mix steering `dsteering - (0.32 * normalize(abs(j_steer?0), c_steer_dz) + (0.68 * (c_steer_func / 2)) * pow(normalize(abs(j_steer?0), c_steer_dz), 1.75)) * sign(sel(c_jisteer, -j_steer?0, j_steer?0))`"
There is seemingly more "play" through the steering in 1.50/1.51/1.52, so a more realistic ratio will feel more correct.
For that "delay" feeling, I recommend setting the sensitivity or steering speed within your wheel's driver/settings to around half of normal. For the G29, that's 25% if you have it default, or 50% if you run 100%.
My wheel is typically set between 25% and 40% depending on my truck. This will change the initial steering ratio for the first 15-20 degrees of steering. Until SCS actually implement realistic steering, this is the best that can be done, as far as I know. I don't recommend using the in-game sensitivity slider. This will introduce a complete ratio change, and may even create a deadzone.
Load Order:
-Air Ride/Camera mod of your choice (Only if you'd like to override Eddie Yantz's mod)
--This Mod
---FRKN64's Realistic Physics
----Eddie Yantz Physics Tweaks
-----Air Ride/Camera mod of your choice (If you'd like the above mods to take priority)
(This mod was originally destined for the Steam Workshop, but I couldn't get the uploader to recognize the dependencies, thank you to truckymods for having a much more reasonable upload system)
Currently Fully Supported Trucks as of 03/16/2026:
Pizzter & Damo - Peterbilt 389 Custom Megapack
Jon Ruda - Pete 389, Pete 579, Pete 362, Kenworth W900, Freightshaker SD, Freightshaker FD/XL, Freightshaker Cascadia
Jasper's W900
Rollin' 389
Dom's Diesel & Chrome - Peterbilt 379
Kishadowalker - International 9300, Mack Superliner, Peterbilt 352, Brockway 761, Mack F700
Faster Modding - DINA/International 9400 Beta, Kenworth T800 '89, Kenworth W900 '90
HFG - Marmon 57P
FLX Mods - Peterbilt 359
Joster91 - Kenworth T660 (Patreon)
Hatreyu - Haterbilt Viper 389, GTM Kenworth T800 Updated
Smarty - Perterbilt 350, Peterbilt 351, Pacific P-500F, Scot A2HD, International Paystar 5070
Harven - Kenworth W990, International HX520, International HX620, Mack-R Series, Freightliner FLB
SgtRox - International 9400i, Kenworth T700
R.Modjeski - Peterbilt 386
guidot - Project 3XX, Edison L Series
Ironwerx - IW900
Boremann's Performance - D3D Kenworth T880, Western Star 6900, Mack Pinnacle/Granite
XBS - Autocar AT.64
RTA Mods - Kenworth K200, CAT CT660
Overfloater/Sherman - Kenworth K100E, International 9300i
Outlaw - Kenworth W900 Classic, Western Star 4900EX
Odd Fellow - International 9800i
Cxrtified Customs - Freightliner FLC
Blade's Shop - Ford LTL 9000
mTG - Peterbilt 281-351, Mack B61
Roadkiks - Ford LTLA 9000 Aeromax
Blueprint Mods - Kenworth Needlenose
Here is a full list of the supported truck def directories as of now, but please be aware that only the trucks listed above are known to be up to date to their latest versions as of 03/16/2026:
389ep
4800w
670vnl
9400i
autocar.at
autocar.dc
bp_granite
bp_vision
bp_ws6900
brockway.ksw
clt.9000
ct660
dina.800.f
dina_9400.f
dk_t880
dom379
f700_ksw
fl.122
ford
ford.9000
fred.122
freight.casca
freight.xl
freightliner.coronado
freightliner.flb
freightliner.flc
freightliner.fld
gmc.white
int9300_ksw
inter.4070a
internat9800
intnational.9600
intnational.9900i
intnational.hx520h
intnational.hx620
intnational.lonestar
intnational.lt
ironwerx.w900
ken104
kenw608
kenw659
kenw909
kenworth.k100
kenworth.k100e_of
kenworth.long
kenworth.needlenose
kenworth.t600
kenworth.t610_gtm
kenworth.t660
kenworth.t660jekich1
kenworth.t680
kenworth.t680ng
kenworth.t680_2022
kenworth.t800.yanred2021
kenworth.t800_gtm
kenworth.t880
kenworth.t900
kenworth.w900
kenworth.w900a
kenworth.w900bb
kenworth.w900b_gtm
kenworth.w990
kw.t800_90
kw.w900jl
kw.w900l
mack.anthem
mack.chu613
mack.rd400
mack.rhpl
marmon.p57
outlaw.359
outlaw.w900
pacific.p500f_scr
pete.jc
pete352.ksw
pete352_ksw
pete362
pete579jr
peter281
peter387
peterbilt.350_scr
peterbilt.351_scr
peterbilt.352
peterbilt.378
peterbilt.386
peterbilt.389
peterbilt.389v2
peterbilt.3xx
peterbilt.567_gtm
peterbilt.579
peterbilt.flx
peterbilt.ng579
peterbilt.pinga
prostar
rezbilt.389
scot.a2hd
superliner.ksw
vnl660_mw
volvo.vhd
volvo.vnl
volvo.vnl.2018
volvo.vnl2018
volvo.vnr
volvo.wia
westernstar.4900
westernstar.5700xe
westernstar.57x
white.64t
If there is a truck you'd like me to add, just let me know and where I can find the truck's def files.
Trucks with encrypted chassis files are not able to be added to the patch. If you'd like these trucks to be included in the mod, reach out to their creators. Many of these trucks require updates for newer game versions, and cannot be driven anyway. At present, there isn't much that can be done about this.
Current Request List:
- Moiza mods trucks - Chassis files locked
- Renenate Trucks - Too many conflicts (May create a separate file, huge time investment with how many mods of his have conflicts in their chassis and tire files)
- Australian Kenworth Pack Updated Chassis - Clean files currently unavailable from safe sources (Some trucks should still work with the mod regardless)
- Hateryu Expansions - Some additional chassis may not have physics mod applied (May create a separate file in the future)
I made this patch because, as a real trucker, I felt that things were just not quite right in certain ways, and I've spent quite a while working on rectifying that. I'm struggling health wise and I've been out of the seat. Trucking is what keeps me sane, so i wanted to bring that experience back home with me as close as I can. Thank you to everyone who made the mods this uses. They did the real work.
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Included now is an optional Game Config file. This file makes changes to mirror FOV and other gamedata related changes. File is completely optional and included for anyone looking for such a thing.
If you're looking for a GPS mod that actually allows you to see far enough up the road, I initially included the beginnings of that along with the gamedata a few days ago. I finally worked out most of the issues, and so that is now available as a complete, standalone mod here:
https://truckymods.io/american-truck-simulator/ui/gps-quality-of-life-improvements-878458
