New Member here, thought I should introduce myself as I found a lot of good information here when I was shopping trucks.
Already used a tech tip as well - 1/2 PEK as a replacement bushing for the door striker, fixed my door perfectly.

On to the truck. It's a 79 K20 I bought from the family of the second owner. He had purchased it in '89 and used it in the summers with a slide in camper. He passed away last year and I bought it from his family.
Deal took a month to complete due to some complications with the DMV. I drove it home over the weekend and registered it today.
I didn't get much documenation with the truck. It does have the original owners manual and the option sheet on the glove box door.
I would guess it was a pretty typical truck for the times equipped with:
400 CI
4.10 Gears
TH400 Trans
7.5 X 16 Wheels
Aux Fuel Tank
Gauge Package - No tach
Sliding Rear Window
AM Radio
Scottsdale Equipment
Dark Carmine Red
Conventional Two-Tone
Camel Custom Vinyl
B/eye Mirrors
Standard Emissions
It also has what appears to be factory cruise but that isn't listed.
Full time 4wd, so the NP203 t.case, Dana 44 front and 14 Bolt rear axles.
What's great about this truck is that all that stuff is still on it and in nice shape.
It's had a few accessories added, heavy duty rear bumper and receiver, front spare tire mount, stainless grill insert, dual batteries, CB, Intermetint wipers, Sony AM/FM/Cass, trailer brake control. All that stuff works. The intermintent wipers were a nice treat driving home 200 miles through some light rain storms, radio was nice too.
It's really just a nice, clean old truck that was taken care of.
It's not going to win any shows, the family said it was repainted in the original Dark Carmine/White combo when the Old Man bought it. Not a great paint job with orange peel and some sags, the clear is now peeling on top of the fenders.
No rust I've found on the body though, cab corners, wheel openings, bed all look good.
The only issues I've noted are a exhaust leak and some leaking into the cab either from the windshield or the doors. The Old man had kept it garaged but it was outside for the last year. When it leaked there is no where for the water to go and the jute is like a sponge holding water so there is some surface rust on the floors by the sill plates.
I'm going to clean up the rust and hit it with some POR 15 then track down the leaks. Any ideas are appreciated.