I put one in my M38. I have to get a multi position switch because it blows air so fast that it blows cool air. Need to slow it down to capture some warm air
I put one in mine also. A great heater! Literally moves my wifes hair on high. You'll want a 180 T stat. Two speed switch is also nice. Rick's custom diffuser so you can direct flow also. If you have the gun rack on the windshield, a defroster is out of the question. You have to rotate the blower to face upwards. I also spaced it away from the front of the toolbox. Originally they moved air through the toolbox and installed a screen to the outside. Mine is all inside air. John
Hey John, funny you should mention the air routing. When I first got my M38 I was wondering what the vent was on the side of the Jeep. Mine had a heater at one time long ago. The front of the tool box just had crude drilled holes. #@$%@ that Jeep was ugly.
Did you plumb yours hoses like Rick's thru that cover plate or did you go thru the firewall somewhere else?
Bubba had two holes in the firewall under the glove box. I just cleaned them up and installed 5/8 rubber grommets. I"d drill the floor plate if those weren't already there. Go to the downloads here, and there are great pictures of the kit installed. They are in a TM. John
TB 9-2855-7 in the downloads section on figure 5 shows the hoses going straight out of the heater unit direct to and thru the firewall. I don't remeber but it gets me wondering if I closed some holes up that were used for the heater that was there in the past. I can't figure out how to capture a pic from there to post here.