Hey, glad Jeremy could help! Yeah, you're right. The Rubi does have a WMS of 60.5. I'm running Spydertrax spacers on my '05 LJ Rubi which pushes that out 1.25" on each side so I ordered my Dexter axle cut at 63" which would make it close to the Jeep's track width. After getting my axle in my hands and trying to fit the wheels, I found this issue you did, that it wouldn't work and then went into the hassle of trying to find the way of making it work. After a ton of searching and at the point of nearly ordering custom, I finally found Jeremy and gave him a shot and they worked great! I'm updating my build thread here in a second to show the wheels actually mounted. It all worked out great. With the spacers my WMS is now at 66" which is wider than I wanted, but there is no other way around it. I also really wanted to keep a 48" inside box width so I needed the wider axle to start with. My axle builder said that I needed to keep the spring perch 1.5" inside of the the widest part of the tire buldge when I burn them in for a safe clearance distance at MINIMUM and on my axle with the spacers it just barely clears the brake drum. I'm coming 3" inside the mounting flange and still getting 50" for inside box dimensions as I'm mounting my uprights outside the frame-if that makes sense at all.
Probably more info that you wanted, but the spacers offered more room for the spring perch placement as well that I didn't think about and allowed for a little wider box than I would have otherwise been able to get. If you're dead set on an inside box dimension, this may or may not be an issue. Something to think about if nothing else.
Best of Luck,
Mike
