The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - My 78 K15 High Sierra build

Greenlee · 03-25-2015, 08:41 AM

Looks good! I did the same thing you did and hung the brackets on evaporator/core support upside down on the first try.

I didn't have near as much drama with the brackets, but I used the serpentine belt setup. I did have a little trouble finding a belt that fit. I think the one I ended up using was listed for a Crown Victoria.

You have one more hole to drill in the firewall if you haven't done it already since your last pic. There is a drain tube for condensation from the unit under the dash. I used a level across the bottom of the unit and made a mark on the firewall. Then I went down about a 1/4 inch to give the drain a little fall and drilled a hole.

03-25-2015, 08:41 AM	#328
Greenlee Registered User Join Date: Jun 2004 Location: El Lago, TX Posts: 1,668	Re: My 78 K15 High Sierra build - Fish Tremble Looks good! I did the same thing you did and hung the brackets on evaporator/core support upside down on the first try. I didn't have near as much drama with the brackets, but I used the serpentine belt setup. I did have a little trouble finding a belt that fit. I think the one I ended up using was listed for a Crown Victoria. You have one more hole to drill in the firewall if you haven't done it already since your last pic. There is a drain tube for condensation from the unit under the dash. I used a level across the bottom of the unit and made a mark on the firewall. Then I went down about a 1/4 inch to give the drain a little fall and drilled a hole.