Jerky acceleration on bear tracker

[Gary Patch]

Hi my bear tracker is jerky on acceleration like it is coming out of gear briefly could this be the drive shaft rear diff was allmost dry of oil ? 

[Thumpinhard25]

Is it a mechanical jerk? Or a acceleration related jerk? Do you feel or hear something grinding or poping, or does the engine have quick losses of power? 

[Gary Patch]

Engine is fine feels like going out of gear and back in briefly but not like a clutch slip the rear diff was dry of oil was wondering if it was something worn there ,thanks for reply