an arc of the same radius as pin 42 and the center of the arc is axially aligned along axis 28 thus surface 50 and the circumferential surface of pin 42 form face to face bearing surfaces and permit bucket 22 to pivot relative to hitch 10 about axis 28 when the bucket is connected to the hitch as shown in fig1 and 2 back connector 26 includes parallel rear connector plates 64 welded to top wall 58 of bucket 22 and extending upwardly to lines coplanar with flat upper surface 66 of the bucket and connector block 68 welded between plates 64 and extending upwardly to fit within receptacle 32 an aperture 70 extends through block 68 coaxial with axis 28 and a cylindrical boss 72 is mounted on block 68 coaxial with aperture 70 locking pin 76 extends through apertures 34 in receptacle 32 and aperture 70 in block 68 boss 72 engages the semi cylindrical lower edge of an alignment stop 74 mounted on the inside front wall of receptacle 32 coaxial with aperture 34 and axially aligns apertures 34 and 70 along axis 28 pin 76 thus pivotally connects bucket 22 to body 12 for rotation about axis 28 with the pin apertures 34 and 70 and cylindrical surfaces of stop 74 and boss 72 forming respective face to face bearing surfaces for pivoting bucket 20 relative to body 12 a bearing sleeve 78 extends between support plates 36 38 of body 12.