Running into a few issues that I thought I had figured better.. Building a Coleman Colorado from frame up, looking to tow it behind the Grand Cherokee with a small lift. I already replaced the slipper spring setup for 1750lb 4leaf springs with a shackle and new Dexter axle bolted in spring over axle configuration. I don't think I can fit enough tire under it to use the Jeep wheels I had machined for the Dexter hubs. I'd like to stick with these 15x8 wheels as they match the Jeep.. I'd like a 235/75ish tire.. Jeep runs on 31's. Typically i'd find a set of lowering/lift blocks and call it a day... until I opt for a better suspension in the future. Problem i'm having is I cant find blocks in a 1.75" width and 1-2" tall reasonably priced. $75 to $150 is silly.. Ordering 2" wide blocks and narrowing with a grinder on sides doesn't appear viable either as most blocks are aluminum with voids nowadays. If I opt for just using square tubing and grade8 hex head bolts, what thickness tubing for a trailer coming in around 1500lb max? 1.75" aluminum/steel bar stock? Online? Appreciate input..