I have an 01 Ford f350 sd crew cab short box and am about to purchase a 29 foot fifth wheel. The advice I get seems to indicate I need a sliding hitch(better to have it and not need it...),and as my access road has a dogleg curve with a down grade I'm going to purchase one before I damage my truck. Can any of you reccomend a good brand you have experience with and or one to stay away from? I am leaning toward an under bed mount and preferably one with in cab control,being able to also remove the rails would be nice too.I also was told there is one that automatically extend/retracts itself.I apreciate any experience you're willing to share,I would like to spend my money once and don't have any fith wheel experience myself.Thank you in advance for any help you can give me. Rob H.