New repair kit for steering shaft. Services shafts where upper seal has worn a groove into shaft causing oil to leak from upper housing. For 2-wheel drive models. Ford Tractor Models: 2000, 3000, 3400, 4110, 4140 (1965-1975) not for vineyard models. 2600, 3600, 3900, 4100, 4600SU, 335, 532 (with or w/o cab, 1975-3/1976; w/o cab 4/1976-1981), 2310, 2610, 2910, 3610, 3910, 3910SU, 4110SU, 4610SU, 230A, 234, 334, 530A (w/o cab 1981-9/1984).Shaft size is .875. Part # SRK632AA