The lower castings are $130 each and the upper castings are $131 each. I'm not positive if you would need to replace the upper and lower or just the lower. I can certinly find this out if you would like. Let me know if you would like more information!

Brad Stephens
www.sunjammers.com
info@sunjammers.com
Authorized Hobie/Vanguard Dealer
Panama City Beach, FL
850-235-2281