Our starboard propellor shaft was damaged when the thrust bearing retaining nut came loose and/or failed. The shaft was spinning against the retaining nut and/or other internal parts, wearing it down. It cost about $3,800 (in 2024) to have a P&V Machine Shop in Dickinson, TX make a duplicate of our shaft. They used Aquamet® 19 stainless steel that was ordered from Virginia. We were surprised the cost was this high but we have not researched other shops or material options.
Repair of the shaft was an option. This involves machining off material, welding material back, then machining that result. The trouble with this approach is 1) it’s not cheap either, around $1600, and 2) it’s difficult to end up with a totally straight shaft because the heat of welding causes it to bend.