An apparatus for feeding and retracting coil clad portions of one or more high pressure hose assemblies, the apparatus comprising: a primary bull gear fastened to a driven drive axle; a follower bull gear rotatably fastened to a follower axle extending parallel to the drive axle; the follower bull gear meshing with the primary bull gear; one or more secondary bull gear/sprocket modules fastened to each of the axles (616, 622), each of the modules having a secondary bull gear having teeth extending to a first outer diameter and a sprocket gear having teeth extending a distance less than the first outer diameter, wherein the secondary bull gear teeth of each one of the modules on the drive axle mesh with corresponding secondary bull gear teeth of the modules on the follower axle to define between adjacent bull gears an opening width for receiving and passing therebetween a coil clad portion of a high pressure hose assembly, and characterised in that: the sprocket gear teeth of corresponding secondary bull gear/sprocket modules are spaced apart so as to engage opposite portions of a helical coil of the coil clad portion of the high pressure hose therebetween, and each tooth on each sprocket gear has a central recessed portion to accommodate passage of the high pressure hose and outer portions adjacent the recessed portion for engaging and applying thrust to the helical coil of the coil clad portion of the high pressure hose. a primary bull gear fastened to a driven drive axle; a follower bull gear rotatably fastened to a follower axle extending parallel to the drive axle; the follower bull gear meshing with the primary bull gear; one or more secondary bull gear/sprocket modules fastened to each of the axles (616, 622), each of the modules having a secondary bull gear having teeth extending to a first outer diameter and a sprocket gear having teeth extending a distance less than the first outer diameter, wherein the secondary bull gear teeth of each one of the modules on the drive axle mesh with corresponding secondary bull gear teeth of the modules on the follower axle to define between adjacent bull gears an opening width for receiving and passing therebetween a coil clad portion of a high pressure hose assembly, and characterised in that: the sprocket gear teeth of corresponding secondary bull gear/sprocket modules are spaced apart so as to engage opposite portions of a helical coil of the coil clad portion of the high pressure hose therebetween, and each tooth on each sprocket gear has a central recessed portion to accommodate passage of the high pressure hose and outer portions adjacent the recessed portion for engaging and applying thrust to the helical coil of the coil clad portion of the high pressure hose. the sprocket gear teeth of corresponding secondary bull gear/sprocket modules are spaced apart so as to engage opposite portions of a helical coil of the coil clad portion of the high pressure hose therebetween, and each tooth on each sprocket gear has a central recessed portion to accommodate passage of the high pressure hose and outer portions adjacent the recessed portion for engaging and applying thrust to the helical coil of the coil clad portion of the high pressure hose.