Hi Swifty!That spring assembly looks so rugged I would think it would take so much to damage it, I was hoping he would find something elsewhere. Maybe a damaged tooth on the rear diff gears, or a stripped spline on the driveshaft or the rear wheel splines. But even those would be a far fetched happening. Maybe a clatter from the one -way clutch or the damper gear on the clutch basket springs broken.
I kind of gave up for the moment, clutch springs are good, we have repared just in case the weaker ones but the problem havent change a little. The other things you point can be, but will leave it to a "hopefuly" good mechanic when the quarantine ends (someday
Thanks again Swifty!