have a 99 neon highline five 5 speed just replaced cv shaft, where does a person refill the gear oil that drained out?

 

Try a cheap hand pump. If you use the heavy gear oil, I cut the pointed tip and stick a piece of clear tubing. It can get messy but it works. Fill till it comes out of the filler hole. I don't mind getting dirty but there is something about the smell of gear oil I don't like.....

 

Drain all old fluid through drain hole, then replace drain plug. CAREFULLY remove the speed sensor, nowfill through this hole with funnel. Easier with less spill.