By any chance, would anyone know the wheelbase offset of Gullwing Shadow DLX trucks or be able to figure it out for me?
I was skating these mid to late 90s, which were my heydays in terms of popping ability. I know there are tons of other factors and I could easily post this in the madness or other truck threads but I think I saw that they were mid/lower and know they were something under 8” but this wheelbase factor is the thing everyone seems to be on these days when I don’t even think it was even a glancing thought on anyone’s minds back then. I know I don’t want to just get a set to try again but I would like to find out what is a close modern equivalent.
If they looked like this, then I have a set that was on an ebay complete I bought for the deck and the wheels.
I can put them back on a board to check and see, but I seem to recall they felt similar to Indy at the time, for the pop and the overall turn, maybe a bit lower, but will check and see and get back to you before the end of the week.

* I found this info too, so maybe they are quite low compared to everything else.
https://offsetskatesupply.co.uk/product/gullwing-shadow-dlx-trucks/The Gullwing Shadow DLX truck is an old-school truck with a modern feel. If you want something with proper 1980s quality but that can handle modern street skating, this is the truck for you.
Currently, we only stock the 8.5″ version of the Gullwing Shadow DLX, and we’ve measured it as having a real-world hanger measurement of 147mm, an axle of 8.43″, and a height to the center of the axle of about 51mm with the stock bushings, with a weight (including all supplied nuts and washers) of 390g per truck. That means these are relatively low trucks compared to trucks in this size from other brands. Stick to small wheels or throw some risers in your setup!
The bottom bushing is a 13.5mm tall barrel, and the top one is a 9.5mm tall cone. The provided bushings measure 88a on our durometer. The bushing seat in the hangar is fairly open, with an elliptical hole for the kingpin, so expect these to turn quite deeply when pushed.
The baseplate is double-drilled, having both the new school (shorter) hole pattern and the original 80s style holes, meaning these will fit on any board in existence, whether it’s a modern shaped deck or a classic reissue.