Alright guys im gettin really worried....

Started today. If im accelerating slow, as the truck goes from 3rd to 4th at about 48-49 mph, the truck jerks about 2 or 3 times before continuing. If im getting on it a bit, no issues, but the slower im accelerating, the more it jerks. Feels like its slipping or like its not getting fuel for a split second then catching itself again. ***?

Help!
Jeff

Here are the specs on the truck.....2000 Dodge 2500 Sport Cummins 24 Valve, 4x4, Auto, Quad Cab, Short Bed With BHAF, Airdog 100, Edge Juice with Attitude, Turbo Silencer Removed, Upgraded Input Shafts, Shift Kit

 

check your grounds. battery, alt. etc.