11571480 A description fig1 illustrates a snowplow moldboard 1 with the snowplow extensions 2 in the extended position extensions 2 slide on cutter track 3 which is bolted to the snowplow moldboard 1 in place of the existing cutter and guiding track 4 which is welded to the top of snowplow moldboard 1 extensions 2 under manual operation are held in place by adjustment holding pins 8 which extend through guiding track 4 adjustment holes 7 allow the extensions 2 to be adjustable to various widths there may be as many adjustment holes 7 as desired to obtain various widths handles 9 are mounted to the top of extensions 2 and aid the operator in sliding the extensions plow guides 10 are mounted to the outside corners of extensions 2 for operator location of the ends of the plow from within the vehicle side plates 5 are an optional added attachment to the extensions 2 for the purpose of holding the snow in front of the blade side plates 5 are attached to extensions 2 via side plate attachment bars 17 which are part of side plates 5 and slide through side plate holders 6 and are fastened thereto for optional hydraulic operation the double action extending cylinders 11 are positioned to the back of snowplow moldboard 1 and extensions 2 as shown by direction arrows in drawing adjustment holding pins 8 are not required for hydraulic operation.