cj3b ubolt specs

I am rebuilding a m416 trailer and hope to take it out camping this weekend. The only part I am missing is the ubolts. I was going to order some new ones but everyone needs measurements to make them. The m416 uses the same ubolts as the cj3b. I am on the road till wednsday and have no way to measure them and there are no local sources. I am leaving on this trip thursday so I need to have them shipped to me on wed or pick them up on the way home. Anyone got the measurements handy?
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Does it use the same as the front or rear? The rear tapered axle Dana 44 housing is 2 1/2" outside diameter. I want to say the front axle tubes are 2 3/8" but can't remember for sure....

 

Front I beleive
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I tired to search with my blackberry but its hard with it left my laptop at home. Thanks everyone
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Those Crown numbers are the original Jeep PNs, as far as I can tell. The 8xxxxx are old Willys part numbers.

 

When I got new U Bolts for my trailer, they were same as the front axle in the Jeep IIRC. Uses the same hub assembly in any case.... I'll measure the radius (unless it's too late)