truck goes in tomorrow hopefully this will solve the rough running on overrun and knocking and thumping through the drive train at low speed, should transform the vehicle if this is the problem fingers crossed and toes and testicles for good measure 
will let you know if this fixes it,unlike many that get the advice and never let you know if it cured it or not!
will let you know if this fixes it,unlike many that get the advice and never let you know if it cured it or not!