It is possible that your radiator is partially plugged or the heater core is leaking coolant or the thermostat is the wrong temperature. Sorry for so many scenarios, but I have seen all of these.
No.
No
They are the same from 1994 to 2002.
No the 1999 and 2002 1500's are different body styles.
You will need to get a repair manual for this because you will be pulling the dash and the complete a/c-heating box out, very complicated......................
The valves on a 1999 Dodge Ram 5.2L are not adjustable.
I have never heard of a mixer on a dodge truck.
No
eBay
Yes but the gears have to be changed
What is the air conditioning oil capcity for a 1999 dodge 1500 with a 5.9
The 360 was an option for a 1999 Ram.