Having trouble opening and closing your garage door. Is your garage door opener working properly but doesn't seem to open quiet right. It might be your carriage assembly. The assembly is connected to the garage door openers rail. If your garage door opener is working properly but you have tension on the rail then it is time to replace you carriage assembly. Replace it with one of genies garage door carriage assembly and have your door opening and closing smoothly again. It is simple and easy to replace. Check you garage door openers model number below.