i have an an axle from an 87 but has the 85-86 24 spline count so you can still use the 86 hubs and wheels, from the old hq site, all axles are direct swaps
i also have the complete set of a-arms with disk and calipers from an 87, not sure about a direct swap, maybe someone else can chime in on that.
parts are just sitting in a box and i dont plan on buying a 250 so no use to me