I am currently considering purchasing a larger Trailmanor and have been concerned about the single axel on this size of trailer.  Seems like the dual wheel idea would be a good one.  J.C. Whitney has kits to adapt dual wheels to single wheel pickups.  Not sure if they would work in a TM modification.

I have not looked under a TM, but how difficult would it be to add a second axel and go to smaller tiires such as 14 or 13?  I currently have a 21' Towlite and it uses 13 and is 2900 empty.

Ken