2.3 Knocking - oil pump? known problem? help please

ok now when i unbolt the motor while its jacked up some, do i have 2 un bolt the tranny or driveshaft?or can i unbolt it and jack it up a little 2 slide it out?? casue the way mine is lowered its seems like i might have 2 do something with the driveshaft. mines t-bars and no bump stops so its really low in the front, rear is 3in block and 2 leafs with barely any bump stop. need some info on this. kustompup93