I have a 1996 dodge ram 1500 and the radiator is leaking on the bottom drivers side where you can't see it does anyone know how I would fix it, and it only blows out luke warm air through the heater could it be that the radiator needs to be flushed

You likely need to reverse flush the radiator and heater core. It may be time to remove and replace the radiator or have it rodded and resoldered. Refill with a 50/50 mixture of recommended antifreeze and distilled water.

I also have a 96 dodge ram. The replaced the AC unit with a new one now there is greenish fluid draining out of the same spot. I have to pay $763 for a new radiator and heater coil. The parts are cheap but the labor is expensive.