Designed to lower the 30" F350 outboard propeller by 5", allowing the transom bracket to be installed higher than normal. A modified spacer is installed between the mid section and the stock 5" spacer, above the lower gear case, and is easy to install as no machining is necessary. Each Kit includes a modified 5" spacer, drive shaft, water pickup extension coupler, the pitot extension hose and fitting, the shifter extension coupler and all fasteners.