We got the camper off the frame and the axle will definately need to be replaced.
You are welcome. Don't forget the numbers in the spreadsheet also include the 4" lift required to install a trailing arm axle
When you get the axle off please try to cut through the main beam and get a picture of the shape of the rubber. I'm sure we would all like to see the effects of 37 years.
In my excitement of finally getting my new axle installed, I forgot to get a picture until it was too late.