I do not have the specs unfortunately. If you don't mind me asking how much did you pay to get sleeved and gusseted?
Go onto pure jeep.com. Look up under new products, and look for there JK D30/D44 axle knuckle gusset kit. It is 200 dollars, it includes an outer backbone brace, upper/lower c gussets, lower control arm skids front and rear and a track bar mount gusset. It is a hell of a kit and the install is MUCH cheaper than a traditional sleeve and gusset, as you do not have to take down the axle with this kit, at all. You just need someone to weld it on for you, could probably find someone to do it for 150-200 bucks. That is if you do not know how to weld, or do not have a close friend/family member who knows how to that would be wiling to do it. Plus, a backbone brace(basically a heavy duty truss) is MUCH MUCH more stronger than a inner sleeve!
This was the kit that was recommended to me by Jeremy at Rock Krawler, and I had it installed there by one of their employees.