Released '87-'06 Gavril Durham - Somewhat Unsupported r1.2

It works per se, just doesn't fit that well which is why I didn't include a config for it. Needs smth like this

 

Amazing mod, pretty much what I wanted to make like 2 years ago but gave up (my version would have been just a D-Series body on a modified T-Series frame with a custom hood so it's better that you made this instead)

There are some janky things like some parts not being skinnable, clipping or straight up missing unless you spawn the H-Series first, also a ton of unfinished stuff that should have been removed probably, but overall this is a great mod, the amount of customization you can do and silly parts you can put on and ability to just do stuff that makes zero sense (as shown on the image above) is amazing
The custom sounds are some of the best sounds I have heard in mods, and I really like the lots of small barely noticable details like the turbo glow, custom horn sounds, folding mirrors, realistic air brakes, etc. The fact that you can swap some of the parts from the mod into the D-Series is a cherry on top (although they are invisible for me, idk if that's on my end or a bug). V10 powered ambulance with huge tires is something I didn't know I wanted lol
Overall, congratulations on being the first modder to make a medium duty truck properly! There are some rough edges here and there but overall this is one of the highest quality mods I have seen this year, keep it up!

 

The custom parts are skinnable, they just have a curious way of doing it. Plus not all skins support every part which is why the police skin is as it is in your image. Check the skins folder inside the mod to see how it works.
In short, every hood is a part of a different material so the same skin applies different textures to different hoods. The spoiler works the same way. This is how, with the same skin, these two trucks can look different:

 

Driveshafts are held up by a bearing in the middle to not have an obscenely long driveshaft with the consistency of a noodle. However this is inaccurate as the driveshaft should slowly be lowered down and not suddenly angled down at the last bend. I'll address this sometime later

 

1: Bottom of the turbo is solid cast iron and it's not easy to heat up. That's intentional
2: Parking brake - clutch - brake - throttle?
3: All the included configs use bucket seats with the manual shifter (unless if I've missed some or if they are from the skinpack)

 

It's the regular foot mounted parking brake on the hydraulic brake models. The air brake models will get the yellow parking brake valve sometime as well
About the seat, I'll address that when possible