One of the key inspection points most buyers miss is one of the easiest to problems to detect. It is checking the rear wheels for signs of an oil seal leak at the rear axle. The signs of a leak are easily seen on the inside of the rear wheel or the brake back plate. If oil is detected, there is a high probability that oil has leaked onto the brakes and brake components, creating a very messy repair project inside the brake drum. The problem with not fixing the problem is the potential for brake failure or a fire.
Take the time to inspect the rear wheels before and after you buy that RV. A quick look on the lot or at home may save you problems down the highway.