Should be "R-134a" which is available at any local parts store.
"R12" aka "freon" was outlawed for new vehicles in the late 80's/early 90's due to ozone pollution danger and the danger to the techs charging a system with it.
A 1998 Ram uses R134a.
R134a
R134aR134a
A 1994-2015 Ram 3500 uses R134a.
Would have been built with R12, can be converted to R134a.
A 1998 Dodge Ram does not have EGR.
46RE
Automatic transmission fluid.
2.87lbs
yes
There wasn't a 1998 Dodge Ram 1500 diesel.
R134a Refrigerant. starting from 1994 models till now, all vehicles equipped with A/C uses this. Prior to this it was R12.