Exact same coil as Nay's 144VT & 145VT's with an inch less lift. These coils are longer free height than a typical dual rate coil of a similar advertised lift, the top few turns have a smaller diameter wire that easily compresses, hence the "variable taper" description. IIRC Nay provided a pic of his front coil were you can see the top few turns with the coil compressed (EDIT: see post 52). The result is longer down travel when the ground drops away. My coils are a little tippy when I'm unloaded but ride nice. They firm up as I add weight as there is less of the small taper coil in motion as it starts to sit down. Without the weight on the truck, these coils will generate more lift than advertised.
I think the newest design of Dobinson’s VT series coil springs are no longer tapered down at the top. The design seems to be like that of their Flexi coils except heavier duty. I guess there were many complaints of the tapered design being noisy. I’ve been running front 3.5” original tapered Dobinson’s since 2017 and don’t hear them making noise.
So…. What I ended up doing is just adding shock ext’s on the front. Almost 3” more straight droop than before. We’ll test out sat. And it still rides the same of course. And m pretty sure this puts me at L length if not a little longer. I forgot to measure. “Rushing”
This works great!! Btw. Thinking of adding a pair to the rear now. According to the dirt line on the shaft with stock bumps I still have 1” of shaft left. So they aren’t bottoming out either.
