With some help from other forum members I figured out my 21ft 1985 Sunrader still has the faulty rear axle. So my question to you all is what kind of rear axles will work with this model? I found a 1989 rear axle, 4x2, double wheel, 1 ton from an old Toyota delivery truck, will this work or is it too wide? If its not going to work, what should I be looking for? Thanks for your help!