I'm resurrecting this thread after noticing a few things. At the time of this posting the OP has only posted 3X all in this thread. I don't expect them to return, but others may benefit from my comments.
Originally Posted by betty h
Can anyone tell me if my 1973 Boler has been modified or if this is factory? My curb side tire rubs in the wheel well. There is an indent in the fiberglass. The other wheel has plenty of room
I found out the square indent is original. Good news I guess.
Something bothered me while reading this thread, I had to go over it a number of times before I finally figured it out.
In the picture posted, I believe the view is actually of the streetside
wheel well. Note the plumbing lines. There should be no plumbing on the curbside of a 73 boler. IIRC 1973's were still only 13 footers.
The notch in the wheel well is typical of the notch in a boler American. This was done to allow clearance for the gravity furnace
also located on the streetside.
Given the OP is from MN, I postulate that her trailer may be a boler American even if she states it is a 1973. The boler Americans were only made in 1972. Chances are that it may have been originally registered in 1973 this been listed as a 1973 model.
Originally Posted by Ian G.
The Boler body, from the factory, is offset on the frame by 1" towards the kitchen side. This offset means that every Boler has more wheel clearence on the street side than the curb side. ...
Ian, I might agree with you that every "boler has more wheel clearance on the street side than the curb side". That is because I do not consider the boler American to be the same as a boler. That notch in the wheel well shown above is about 1" deep which would negate any difference in clearance.
Hopefully you can see it in the diagram below that I've taken from my boler American's axle
swap thread posted back in 2009: Replacing an Axle - leading arm to trailing arm
From the rear, you can see that the frame is offset to the curbside, but the notch in the wheel well negates the clearance on the boler American.
On edit: It would be interesting to know if the trailer is a boler American. If it is, I'd love to know the serial #. I'm thinking the picture of the wheel well shown is slightly different than the one in mine. Knowing the serial #'s and the differences between between trailers might help with my theory on serial numbers and production plants.