otherwise frictional forces between packing units 305 415 and packing support areas 131 135 of rotating mandrel 40 would tend to also rotate sleeve 150 clamp 600 is preferably fabricated from 4140 heat treated steel being machined to fit around sleeve 150 fig9 is an overall perspective view and partial sectional view of top drive swivel 30 sleeve 150 is shown rotatably connected to mandrel 40 bearings 145 146 allow sleeve 150 to rotate in relation to mandrel 40 packing units 305 415 sealingly connect sleeve 150 to mandrel 40 retaining nut 800 retains sleeve 150 on mandrel 40 inlet 200 of sleeve 150 is fluidly connected to central longitudinal passage 90 of mandrel 40 accordingly while mandrel 40 is being rotated and or moved up and down pumpable substances can enter inlet 200 and exit central longitudinal passage 90 at lower end 60 of mandrel 40 recessed area 130 and protruding section 155 form a peripheral recess between mandrel 40 and sleeve 150 the fluid pathway from inlet 200 to outlet at lower end 60 of central longitudinal passage 90 is as follows entering inlet 200 passing through radial passage 190 passing through recessed area 130 passing through one of the plurality of radial inlet ports 40 passing through central longitudinal passage 90 and exiting mandrel 40 through central longitudinal passage 90 at lower end 60 and pin connection 80 in fig9 injection fitting 225 is shown ninety degrees out of phase and for protection is preferably located between inlet 200 and clamp 600 mandrel 40 takes substantially all of the structural load from drill string 20 the overall length of mandrel 40 is preferably 52 and 5 16 inches mandrel 40 can be machined from a single continuous piece of heat treated steel bar.