This is the most complete kit to upgrade you front axles and hubs for the Triumph TR3 (With Girling Brakes), TR4, TR4A, TR250 and TR6. These kits are fro the FRONT axles. This kit includes all the hardware you will need and all parts are new. New Alloy front hubs machined for oversized heavy duty wheel bearings, new oversized heavy duty wheel bearings, modern wheel bearing seals, Heavy Duty Stub Axles, shims, castle nuts and cotter pin. With the upgraded hubs and spindle it will eliminate spindle flex which causes the brake pad push back. Also with this kit modern rubber axle seals are used which eliminates the need for the dust cap. Does both front wheels.