Rear Wheel won't fit on the axle

[boat737]

Tried on a couple of the rims today (Halibrand's 17x9 F, and 17x10.5 R, on a Moser M9/Ford 9"). I only got as far as 1 rim on the front and 1 rim on the rear, both on the left side. As per a lot of the posts, very little clearance with calipers, e-brake linkage, shock mounts, etc., but at least nothing was hitting or dragging. Before I could try out the fit on the right side, I Did run into a problem though. The rear wheel will not sit down flush on the axle/brake rotor because the boss on the axle is bigger than the inside of the rim. The axle boss measures 3.0585" (sort of a strange dimension, maybe it's a slip fit for 3 1/16, or 3.0625), and the rim opening on the inside is about 2.78" (I couldn't get my calipers in there for an accurate measurement, but I suppose it could be 2 25/32 or 2.78125, another weird dimension.)

So... to get these things to fit, something needs to be changed: Either, I need new axles (I don't know if the 9" rear end would even have such axles available), or machine down the boss on the axle to fit inside the rim (a pain in the you-know-what to take apart the rear end to get them out of the rear end housing), or machine the opening in the back side of the rims to fit the existing boss.

Anybody run into this before? What was the fix? Any experts have any other ideas? Thanks.