On its own weight for the first time in like 5 months. I'm still trying to figure out the shackle hanger placement.
I started with the factory 1335mm horizontal distance from spring hanger to shackle hanger. With the rear wheels off the ground I get this:
And this with no jackstands:
So I moved the shackle hangers forward ~6” so the shackles were at 3-4 degrees from vertical with the wheels in the air, but that resulted in this with just the weight of the bare frame on the rear axle:
I tried splitting the difference with the middle line. It'll still invert the shackle with the wheels in the air, and give me like a 30° or smaller shackle angle with just a couple hundred pounds thrown on the frame (half a sheet of OSB and four very bald and dry rotted 37s on steel wheels). I think with the bed, fuel tank, and anything in the bed the shackles would be just about flat.
Same springs as before, same length shackles.
The spring hangers are at the same fwd-aft position, but are just shy of 2” higher than factory because of the shorter tube section height. Moving the forward spring eye down 2” is doable but will be a shitload of work. Are longer shackles a viable option?