DO NOTE THAT YOU WILL NEED 0.30 VERSIONS OF THE T-SERIES AND TRAILERS FROM HERE:
Legacy Gavril T-Series and Trailers 1.0 - BeamNG.drive

FIXES
-Fixed all bogie issues (you can drive the T-Series logger stinger properly again!)
-Fixed most texture issues

CHANGES
-Moved the trailers to 0.30/legacy versions that are separate from the updated vanilla ones.
Changed the colors of steel wheels on all configurations that originally didn't have colored wheels back to white.
-Removed the useless skin slot from the dryvan straight-truck upfit on the T-Series.
-Removed the spare wheel from the dryvan pup-trailer.
-Added "PBR" to some parts (only one I can remember off the top of my head is the headache rack, and "PBR" in quotations because all I did was change the material version to 1.5 and played around with the values.)
-Gave the dolly a default config.
-Generated new thumbnail images for all configurations.
-Moved steel coil to the commons folder so it doesn't need to be in both the T-Series and Flatbed folders.

NOTES
-I originally wanted to have a working skin system for the dryvan straight-truck upfit and for the mod to have properly working V2 hitches and fifth wheels so the old T-Series and trailers are compatible with new ones, but the game hates me (rightfully so) and pretty much said no. I couldn't figure out what the issue was that caused them to not work so I ended up removing them alltogether.

KNOWN ISSUES
DO NOTE THAT THESE ARE ISSUES THAT ARE OUT OF MY MODDING EXPERIENCE AND THEREFORE I AM UNABLE TO FIX THESE.
-The car lift doesn't work with the T-Series despite working with the dryvan. Likely a LUA issue that is out of my reach.
-The tanker is missing some visual parts. I can't for the love of god figure out if it's just a mod conflict on my end or not but I cleared cache a bajillion times, I made sure the flexbody is correct a bajillion times but those visual models just refuse to show up.
-Sidelights, brakelights, etc. are broken (unsurprisingly).
-Ramps on the flatbed upfit on the T-Series only partially work. It doesn't extend like it should.