Abstract: A valve stem puller which comprises a length of flexible elongated member which is connected at one end to a ring and at an opposite end to an externally threaded plug. The valve stem puller is to be utilized by inserting such through a fastener nut and then through a valve stem mounting hole in a tire rim and then threadably connecting the externally threaded plug onto a valve stem of an inflating tube and then inserting the inflating tube about the tire rim and within the confines of the tire, pulling on the flexible elongated member to cause the valve stem to connect with the valve stem mounting hole in a close conforming manner. A fastening nut is then threadably mounted about the valve stem to secure such in position. The tire is then completely installed on the tire rim and the externally threaded plug is then removed from the valve stem.

Abstract: A truck cab and sleeper unit are extended using a preferred stepped aerodynamic roof which at a first ceiling level corresponds to the original sleeper unit ceiling height, and which at a second ceiling level corresponds to the original sleeper unit ceiling height plus the height difference between the truck cab height and the original sleeper unit ceiling height. The original sleeper roof may be used, or a new unitary roof may be fabricated. The apparatus and method of the invention preserve all or most of the components of an original sleeper unit, while enabling rapid conversion comparable to the full replacement of the prior art.