Necessary When Using 1980 And Newer 605 Steering Box Correct Inverted Flare NOTE: If you are buying our 605 conversion kit, these fitting will not be necessary. These Fittings are only necessary when sourcing a 1980 or newer 605 steering box else where for your 1959-60 El Camino These El Camino inverted flare fittings for 1980 or newer 605 steering boxes have been manufactured to meet or exceed factory specifications and performance. You will find the fit and function will work perfectly for your vehicle. You will also be pleased to know that the El Camino Store has sourced these inverted flare fittings for 1980 or newer 605 steering boxes among other possible parts as the best choice for your repair or restoration project.