These press fit bushings are available in short shoulder, short sleeve and long sleeve profiles. Manufactured from high quality hardened steel, the bushings are finish ground for a press fit. Bushings 1 3/4" in diameter and smaller are finish ground 0.0006" under listed inside diameters to allow for honing at assembly. Bushings for Post Diameter A, 2" and larger, are finished to correct size for guide post clearance. No additional honing is required. EXTRA LONG SLEEVE (-3) bushings include lubrication fitting and and grease grooves. SHORT SLEEVE (-1) bushings include grease grooves but do not have a lubrication fitting.