The Ford 4994731 is a genuine OEM shim designed for the rear axle assembly of various Ford 10 and 30 Series tractors. This precision-engineered component ensures proper spacing and alignment within the rear axle, critical for optimal performance and longevity. It is a direct replacement part, ensuring compatibility and reliable operation for models such as 5610, 6610, 7610, 7710, 7810, 7910, 8210, 8530, 8630, 8730, 8830, TW15, TW25, TW35, and TW5.