Grit dog
Full Access Member
- Joined
- May 18, 2020
- Posts
- 6,970
- Reaction score
- 12,220
- Location
- Auburn, Washington
- First Name
- Todd
- Truck Year
- 1986, 1977
- Truck Model
- K20, C10
- Engine Size
- 454, 350
Yeah I feel like that insulation has to be on a backer board, but idk. It feels glued to the roof all around the perimeter and not sagging at all.Here's our '79 purchased from the original owner's brother. It seems to be a rather thick foam compared to the 80's. When I poke at it, it feels like there's the typical backer board up there.
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The vinyl on mine completely fell off but left a thin black layer and then yellow underneath like your pic. Haven’t messed with it yet.