How to bolt the axel to the frame

[kleimanr]

I am not an Airstream mechanic; but I play one on TV.

I was under my 2006 Classic 30 changing the shock absorbers when I noticed how the axels are bolted to the frame. The bolts have two large washers under the bolt head and no washer under the nut. I find that kind of odd.

Everything is tight and the outfit tows perfectly. So is that proper or what?

[AlinCal]

Must have been running low on washers that day. Mine had washers on both sides.
The axle perch is a tight fit between the frame rails and not going anywhere washers or not.