The most stressful and risky part of a boating trip is often towing your boat to the water. The potential for mishap and damage is always present. The majority of wear-and-tear when on the highway and towing your boat occurs around your trailer axle assembly. There are few scenarios worse than looking forward to hitting the water and suddenly finding yourslef stuck on the side of the road with damaged axle and bearings. The Holden Bearing Kit offers some insurance and suits 39mm round and 40mm square trailer axles, and LM (Holden) bearings. Waterproof with a stainless housing, this complete kit will replace the bearings for a single hub. It includes a bearing seal, dust cover and an axle split pin. For thorough trailer maintance, and peace of mind when towing, bearings need to be checked regularly.