| Category | Farming Simulator 25 |
| Created | 19.07.2025 23:02 |
| Jack Wright (Sirius_ST) | 19.07.2025 23:02 |
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| I’ve been trying to modify a John Deere 8R series (2016-2018) for my personal use, but I’ve been running into a specific issue. First, some background. This is not a base game tractor, it is a mod. It’s by JHHG Modding and I have ZERO intention of reuploading the mod anywhere, this is strictly for personal use. I just love the quality of the model as well as the interior animations, ILS, and etc. The only reason I am looking at modifying it for my personal use, is that I hate the look of the U.S. style row-crop tires. I want it to have EU style singles similar to base game tractors, while still keeping the model and features of the mod largely the same. I should also say I am an extremely inexperienced modder especially in regard to GIANTS Editor and the I3d side. Basically all the mods I’ve made were for personal use and use base game assets with purely XML file edits. Now for the issue itself. The tractor is very prone to rolling over, no matter what I do. It’s severe enough to where it will roll over when turning at any speed above 15 mph. I’ve successfully modified the xml to use the new tires, using the tire from the in game 8R as a reference. That part is working perfectly; zero errors, everything functions properly, etc. It just rolls over. This is, in my mind at least, a fairly substantial issue; enough to where it is unusable. The following are the things I have tried in an effort to fix it so far (Alas, to no avail). First I tried adjusting the center-of-mass of the tractor to be lower. From what I can tell, since the mod have the height adjustable suspension for the front wheels, there are 3 separate components each with their own mass parameters. There is one for each axle at the front and one for the body of the tractor. So, I lowered the coordinates for the center of mass of the body to be closer to the ground. I didn’t notice any improvement from this. Next, I tried adjusting the suspension of the rear wheels back to the mod’s original values as opposed to those from the in game 8R. I also tried using a few different mods (of a 2016-2018 8R) as reference for the suspension values, but didn’t notice any improvements. Though, since I have no real knowledge of how suspension works, it’s possible I was on the right track but simply didn’t get the right values. Next I tried widening the track width. With this I noticed a small improvement, but it was still substantially prone to rollover. I also tried using wider tires in combination with a wider track width, but the level of improvement was roughly the same. I also thought to myself “maybe that’s just the way tractors in the game really behave”, so went to play around with the in game 2022 8R. No matter how recklessly I drove though, it wouldn’t roll over. I am at my wits end. At this point I’ve sunk roughly 10 hours into solving this issue alone. I feel like I must have been on the right track somewhere, but as for where I couldn’t say. Maybe I need to modify something in the i3d as opposed to the xml? Maybe tweaking the weight of the cabin’s model itself? Any advice would be greatly appreciated. I did my best to include as many details as possible, but if more information would help somehow, I will happily provide it. |
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| David Zadnik (DzInLa) | 20.07.2025 05:19 |
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| <components> <component centerOfMass="0 0.5 0" solverIterationCount="10" mass="1500"/> </components> Try adjusting the centerOfMass 2nd number in the XLM. 0.5 to a lower point. If it likes to do wheelies, then adjust the 3rd number. If it likes to drive on two wheels, then adjust the 1st number. |
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| Jack Wright (Sirius_ST) | 21.07.2025 16:22 |
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| That did the trick, thank you so much! I had figured I was on the right track, but I was messing with the wrong value originally. |
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