Roadpilot wrote:
Ivylog has hit the nail on the head. I'd say his guess as to added weight on the rear axle and weight removed from the front axle are pretty close. The longer the rear overhang and the shorter the wheelbase, the worse the problem. I had an Overbuilt lift on the back of a 40' and also a 45' motorhome. Never felt it on the 45' with a tag, but sure knew it was there on the 40' non-tag. It really wandered because the front axle was so light.
It really doesn't matter if the frame is strengthened - it's the geometry.
If he had a tax axle, would that not absorb a great deal of the weight and help with the balance offset?
As I said, its not ideal, but it MAY (used very cautiously) be possible.