Apparatus and Method For Lengthening a Truck Cab

An extender for securing to a truck cab to lengthen the truck cab, comprising:

• an extender rear panel, an extender top, and two extender sides;
• a forward opening on a forward side of the extender rear panel that has an extender opening upper margin and two extender opening side margins, the extender opening upper and side margins being recessed rearward relative to forward edges of the extender top and the extender sides;
• a top fillet extending between the extender opening upper margin and the forward edge of the extender top for mating with a rounded upper corner of the truck cab;
• and
• two side fillets, each extending between the forward edge of one of the extender side corners and one of the extender opening side margins for mating with rounded side corners of the truck cab.

A truck cab, comprising:

• a cab top and a cab rear panel joining each other at a cab upper corner, and two cab sides, each joining the cab rear panel at a cab side corner, each of the cab upper and cab side corners having curvatures;
• a cab rear opening with a cab opening upper margin on a lower edge of the cab upper corner and two cab opening side margins on each of the cab side corners;
• an extender having an extender rear panel joining an extender top;
• two extender sides joining the extender top and the extender rear panel;
• a forward opening on a forward side of the extender, the forward opening having an extender opening upper margin and two extender opening side margins, the extender opening upper and side margins being recessed relative to forward edges of the extender top and the extender sides;
• a top fillet extending between the extender opening upper margin and the forward edge of the extender top, the top fillet having a curvature that matches the curvature of the cab upper corner;
• two side fillets, each extending between the forward edge of one of the extender sides and one of the extender opening side margins, the side fillets having curvatures that match the curvatures of the cab side corners;
• the extender opening top margin and the extender opening side margins being in abutment with the cab opening top margin and the cab opening side margins, respectfully, the extender top fillet being in flush contact with the cab upper corner, and the extender side fillets being in flush contact with the cab side corners;
• and
• the extender opening top margin and the extender opening side margins being secured to the cab opening top margin and the cab opening side margins, respectfully.