B&W Companion slider with an F250 short bed here...haven't actually used the slide feature with the fiver hooked up yet but it's an awesome hitch. I have slid it without the trailer and it moves very smoothly and automatically locks in the rear position after sliding. Weighs about 253# total-head assembly about 45#, the base weighs 208#. Also rated for 18k.
Dave & Amy
5 kids, 2 with 2 legs, 3 with 4 legs
2016 Columbus 385BH "No Worries II"
2016 F350 6.7L PSD CC Lariat DRW "Mistress II"
Ford factory puck system with 26.5k hitch