This chrome 25mm outer diameter axle with a hex and a threaded end can be used to replace a worn out or damaged axle.; Axle shafts are machined from heat-treated Chrome moly steel, triple step chrome-plated, then machine polished and ground to a finish tolerance of + or -.0005" Rear axle nuts are welded to the shaft with a full weld penetration, then machined smooth before final machine polishing and plating Overall length 14" Bearing length 12-3/16" Replaces OEM 41641-08