CURT 55242 Vehicle Side Custom RV Blade 7 Pin Trailer Wiring Harness for Select Ford F 150, F 250 LD coupler welded aluminum tubular frame Length:72" welded aluminum tubular frame It features a series of mounting holes to provide three different mounting heights for the hook and can be mounted in any 2 1 2" x 2 1 2" receiver tube opening It is designed to be a custom wiring harness for certain years of the Ford F150 or F250 LD with new body style (to verify your vehicle compatibility Plugs into vehicle tail light assembly to provide a 7 way RV blade socket Simple plug and play design eliminates the need for cutting or splicing 7 way connects tail