seabed 28 to allow the pinion tower 18 to elevate the hull 12 above the surface of the water referring to fig2 4 it is seen that the invention is generally indicated by the numeral 26 guide roller apparatus 26 is generally comprised of a support box 36 a pivot arm 38 and a roller 40 the support box 36 is formed from two or more support box side plates 42 that are attached to a support box back plate 46 and a support box bottom plate 44 a support box pin 48 connects the pivot arm 38 to the support box 36 a keeper 50 prevents the support box pin 48 from sliding out of the support box 36 the keeper 50 is attached to the support box 36 by any suitable means such as by welding mechanical fastener or by the use of an adhesive the pivot arm 38 is of suitable shape to transfer forces from the leg 14 to the hull 12 the pivot arm 38 is formed from two or more pivot arm side plates 52 that are attached to a pivot arm back plate 68 a pivot arm pin 56 connects the roller 40 to the pivot arm side plate 52 a keeper 51 prevents the pivot arm pin 56 from sliding out of the pivot arm side plates 52 the roller 40 is of suitable shape to transfer forces from the leg 14 to the hull 12 a bushing 58 an inner core 60 and an outer core 62 are assembled together to make up the roller 40 the bushing 58 is of suitable shape and material to allow it the inner core 60 and the outer core 62 to rotate around pin 56 the bushing 58 may be constructed of non.