I need wiring diagrams for an '87 Power Ram. Working without them is sucking when you have to fix a harness from the air compressor and make a harness for a truck that never came with A/C. If you mention that it should be present in that year, sure, it is. I'm doing something different, putting A/C into a '74 D100. I have the book for that truck, all the wire I need to make up the harness, no problem except that I don't have the diagrams for what I'm converting from.
After all this I still have ducting to make. Seeing how heavy the wire is for the blower has me wiring a relay and fuse block with a breaker, Using marine grade wire too since it's MUCH more flexible, pre-tinned, and, lets face it, better wire altogether.
Oh, also, if you have your insulation on the firewall come off or you have to replace it.. Home Depot or Lowes have some stuff called Reflectix.. Basically it's foil covered bubble wrap. Spray with 3M High Strength Adhesive, wait a minute and put in place. This stuff works wonderfully, used it this winter to keep heat aimed into the room instead of going into the wall where we have steam radiators. I had the hottest room in the house and could sleep in a t-shirt, it was great.
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Thanks, George