Contents: (1) 7k TK Trailer Axle - (7000 lb Beam Only) (1) 7000 lb Trailer Idler Axle TK Service Kit - 7k Capacity (2) 7k (7000lb Capacity) Bearing Kit Inner Bearing-25580 1.75 I.D Outer Bearing-14125A 1.125 I.D Inner Race-25520 3.265 O.D Outer Race-14276 2.717 O.D Double Lip Grease Seal- 010-036-00 3.376 O.D 2.250 I.D Cotter Pin Hub/Dust/Grease Cap (2)7k Hub 8x6.5 - 1/2" studs (1)Tube of High Temp Axle Grease(Grease Brand May Vary) (16)Coned Wheel Nuts (2) Spindle Nut (2)Castle Nut This trailer axle build it yourself kit contains hand picked parts to ensure that you have everything you need to properly build your own or service your trailer axle. Features: Hand Picked Parts - We have made it extremely convenient for you by packaging everything you need in one kit Idler Axle Application - OEM grade replacement axle components Kit makes swapping out old parts for brand new parts, quick and simple