Where is the transmission dip stick on manual 1991 Pontiac Le Mans?

The 1991 Pontiac Le Mans, which typically features a manual transmission, does not have a transmission dipstick like automatic transmissions. Instead, manual transmissions are generally filled through a fill plug located on the side of the transmission case. To check the fluid level, you would remove this plug and ensure the fluid is at the level of the opening. If you need to add fluid, it can be done through the same fill hole.