[benchseat67]

I am faced with the likely probability of replacing the fan motor for the heater in my non-ac 1973 cat. I haven't investigated it too far but was wondering if the entire plenum chamber needs to come out to accomplish this task. Any input would help. Thanks...

 

[cougarlover29]

there are just some bolts to remove and the wires going into the (red)relay. The only thing you won't like is the gooey mess that will be in there, wear latex gloves. The bolts are tough to reach, be patient.