85 C-10 Heater Box questions..

[illmanners]

All,

New to the forum, but not new to rebuilding/restoring..however, do have a few questions that I have not found specifically addressed in any thread relative to heater boxes.

Have an 85-C-10 with A/C and am in the process of replacing the heater core. Have the heater box out of the truck and completely disassembled, new core in place and noticed what appears to be either a broken part, or one that is designed to "flex?" It's on the inner half of the case (the one closest to the firewall.) Have attached a photo showing it in both and upright position and in the "maybe broken" position. If it's supposed to remain upright, I can fix it. If it's supposed to flex (which I can't imagine, as eventually it would break,) I don't fully understand that..

Also, while removing the heater box, I cam across a light pig-tail that I assume is for an instrument that was either not installed in this truck or has been removed by a previous owner..Have attached a picture of it as well. Need help in identifying it. Cigar lighter light maybe??

Last item..does anyone know of a company that makes new sealing rubber or pre-cut weather-stripping to re-seal the inner areas of the heater box and the conditioner box to the firewall inside the engine compartment? I can cut weatherstripping to fit, but would prefer pre-cut.

Thanks in advance and lets; keep these Wide-Bodies on the road..

Illmanners