Is it happening on all slides or just one? We have the Cable system on our Bedroom slide and it started the jerking, stop/start while going out, would do it coming in, but not as noticeable. Turned out we had a broken tooth in the gear box.
2018 Chevy 3500HD High Country Crew Cab DRW, D/A, 2016 Redwood 39MB, Dual AC, Fireplace, Sleep #Bed, Auto Sat Dish, Stack Washer/Dryer, Auto Level Sys, Disk Brakes, Onan Gen, 17.5" "H" tires, MORryde Pin & IS, Comfort Ride, Dual Awnings, Full Body Paint