Re: Is my rusty axle safe?
I thought my axle was in OK shape with a few rust flakes. On the trip to Canada ( 320 miles ) it developed a lean. Turned out the axle was rusted thru where the spring and the axle tube meet/touch. Luckily it was a month between trips so I could build a new axle and take it back up for the return trip.
Original axle was 1/8" wall, I used 1/4" wall for the new one. The replacement axle shafts were 1-1/2" long stubs into the axle. I drilled them 1/2", added an inner rod and added enough of the same diameter round stock to go under the spring perch. The extension was welded in place by our best welder at work.
If in doubt, replace it. Even purchasing a high priced axle will be cheaper than a high priced tow and possible damage.