Hey all! Pretty sure first time posting in here. But here I am. Got a small utility trailer (4x8 "bed") that I've had in use for the last 10 years or so. Pretty stout for what it is, I know it's had over a ton in it lol, but whoever put it together really got creative. Round tube construction for most of it (black iron pipe I assume, since it's threaded on some ends), and the round tube axle was widened with a section of square tube. We added expanded metal as the deck, along with some support for the expanded metal, and made sides out of metal tube and expanded metal. The axle was some weird piece, I'm guessing quite old. Couldn't find any seals for it that fit, and I spent a lot of time trying. Bearings started to get bad, so time to replace. Got a 3500lb round tube bowed axle. I don't want the thing to end up riding higher than it used to. But due to the diameter of the axle tube (and past experience), there isn't enough clearance to run the axle over the springs. That is going to raise the trailer. Current shackles are 3" long (bolt hole center to bolt hole center) and 2" shackles seem commonly available. My only concern, if that 1" less height would get me close to where I want to be, would be bottoming out the shackle as the trailer was loaded. I'm assuming there is a way to calculate what kind of load would be required to move the shackle through it's arc, but I don't know it. The previous springs seemed pretty flexy, and on many occasions I had seen them bottom out under load. Having no idea what their rating was, I don't really have a starting point to guess how far these 1750lb springs will react under similar conditions. At some point I could change tires and possibly wheels to reduce ride height a bit, but it's hard to get reasonably priced tires that small that will stand up to the weight I'd ideally like them to be capable of supporting, even if they never get worked that hard. I'm just worried that a shorter shackle may flatten out and reduce carrying capacity too soon. Any thoughts on trying a shorter shackle? Realistically it's cheap and easy to reverse if it doesn't work out, but if that didn't work, and I want to keep the same ride height, the only option without redesigning everything, would be to go to shorter tires?