We also have a farily sharp transition from our downward sloping driveway into our garage. Our 2004 2720 has skid bars on the back, just as Bill describes. When backing the trailer into the garage, the skid bars scraped on the concrete slightly gouging the concrete. I looked into attaching casters, but there is not a lot of room on the skid bar for the attachment. I finally built a 6 foot ramp out of 2 adjacnet 2x10's. I place these just in front of the garage door, and the extra height keeps the trailer from scraping the concrete.
MikeD
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