Today I spent a couple of hours removing sealant from three holes in the cab roof. I’m not sure what these holes were used for, but I’m guessing it was various types of antenna. They were definitely added after the ambulance was delivered because they are absolute butchery as far as putting a hole in a roof panel goes and much rougher than the factory antenna holes in the module roof. I suppose I should be thankful that they at least sealed them up after removing whatever was mounted there even though that appears to have involved little more than filling them sloppily with silicone sealant and some unidentifiable black goo.

I wont bore you with detailed pictures of all the holes, but seriously, someone should have lost their job over that hack job.
As I wont be reusing these holes I’m going to level the jagged metal edges as best I can and then sand, prime and repaint the surrounding area before properly plugging and resealing them. I’ve also removed the interior headliner and wall panels in preparation for adding noise deadening, insulation and a vapor barrier so now is the time to do it. I primarily wanted the noise deadening, but figured since I’m already in there I might as well do it right the first time. I’ll be adding Kilmat to the inside of the door panels, floor, ceiling and walls as well as the cabinet behind the driver. It’s a butyl rubber product with adhesive on one side that comes in 10″ x 16″ sheets. This should cut down on the engine and road noise which gets tedious rather quickly. I plan to insulation to an body panel voids and then add a vapor barrier of Reflectix sealed with aluminum tape.
I’m also going to plug and seal the holes in the floor left from the jump seat mounting bolts.
For those who don’t get the title reference: