Replacing the evaporator, dryer and lines on my '97 Dakota. The diagrams I have seen show the orifice tube located in a line from the evaporator to the condenser but my factory line is solid aluminum and does not appear to have an orifice tube inside. All the parts suppliers are trying to sell me a hose with a spring connection on one end with a threaded fitting on the other end but my truck does not appear to have this line. My manual states the orifice tube is located on the outlet line of the evaporator but didn't see it in the line. Has anybody replaced the orifice tube on their '97 Dakota? Thanks.