Author Topic: Hello From NW Montana - 79 K20  (Read 8739 times)

Offline Poorhouse

  • Newbie
  • Posts: 8
  • Newbie
Hello From NW Montana - 79 K20
« on: May 28, 2013, 03:50:47 pm »
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.
« Last Edit: May 28, 2013, 03:52:22 pm by Poorhouse »
79 K20 Scottsdale 400ci TH400

Offline bd

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6600
Re: Hello From NW Montana - 79 K20
« Reply #1 on: May 28, 2013, 03:58:14 pm »
It sounds like a really nice find.  Post a pic when you get a chance.  We love pics!   :D

Welcome to the site from Central California!
Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)

Offline zieg85

  • Global Moderator
  • Senior Member
  • ****
  • Posts: 7595
    • 73-87 GM squarebody extended cab and conversions up to 91 R/V series
Re: Hello From NW Montana - 79 K20
« Reply #2 on: May 28, 2013, 04:08:00 pm »
Welcome from NW Indiana
Carl 
1985 C20 Scottsdale 7.4L 4 speed 3.21
1986 C10 under construction
https://www.facebook.com/groups/248658382003506/

Offline 74 C-10 Shorty

  • Frequent Member
  • **
  • Posts: 291
Re: Hello From NW Montana - 79 K20
« Reply #3 on: May 28, 2013, 04:22:00 pm »
Welcome from California, sounds like a cool truck some pics would be cool...

Offline bake74

  • Senior Member
  • ****
  • Posts: 5871
    • Build Thread
Re: Hello From NW Montana - 79 K20
« Reply #4 on: May 29, 2013, 09:16:08 am »
     Welcome from California.
#1: The easiest and most obvious solution to any problem is 99% of the time correct.
#2: There is no such thing as impossible, it just takes longer.
  74 k10, 77k10    Tom

Offline 1982 Daily Driver

  • Junior Member
  • ***
  • Posts: 549
Re: Hello From NW Montana - 79 K20
« Reply #5 on: May 29, 2013, 10:46:21 am »
Welcome from South Carolina.

Offline Irish_Alley

  • Tim
  • Senior Member
  • ****
  • Posts: 13333
  • Family is not an important thing. It's everything.
Re: Hello From NW Montana - 79 K20
« Reply #6 on: May 30, 2013, 12:05:32 am »
welcome from maryland
If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline Poorhouse

  • Newbie
  • Posts: 8
  • Newbie
Re: Hello From NW Montana - 79 K20
« Reply #7 on: May 30, 2013, 09:14:06 am »
Thanks for the welcome.

I'll get some pics today.

Spent a little time with the truck yesterday. 

Got the drivers window unstuck with some dry graphite lube.  The regulator works fine but the seal is trashed.  Ordered new seal kit for both doors from this site.

Had 2 small exhaust holes in the Y pipe welded hoping that would resolve the exhaust tick under load.  It did some but I think the manifold gaskets are also leaking...
79 K20 Scottsdale 400ci TH400

Offline Poorhouse

  • Newbie
  • Posts: 8
  • Newbie
Re: Hello From NW Montana - 79 K20
« Reply #8 on: May 30, 2013, 12:35:25 pm »
Few pics.  It's dirty hasn't stopped raining since I got it home.

Dark Carmine Red standard two-tone.







Camel vinyl interior with Scottsdale trim.  You can see the added accessories as well.




Clean bed.

79 K20 Scottsdale 400ci TH400

Offline cvbear

  • Registered Users
  • *
  • Posts: 196
Re: Hello From NW Montana - 79 K20
« Reply #9 on: May 30, 2013, 08:48:19 pm »
That is a very nice truck to start with!  Many folks on here have started with much less to work with than you have.  On the leak, the cowl seal is probably the most common cause of what you describe, search on here an you will find some detailed threads on how to fix it.  Welcome to the site.
1984 SWB Silverado fleetside, 350 crate engine, 350 trans

Offline Poorhouse

  • Newbie
  • Posts: 8
  • Newbie
Re: Hello From NW Montana - 79 K20
« Reply #10 on: May 31, 2013, 09:33:14 am »
Thanks!  I looked at a lot of beaters before finding this one.

I'll check out the cowl seals.
79 K20 Scottsdale 400ci TH400

Offline 74k20

  • Registered Users
  • *
  • Posts: 145
Re: Hello From NW Montana - 79 K20
« Reply #11 on: May 31, 2013, 11:55:28 am »
Nice find and a nice truck - congrats.  Is the th400 original to the truck, based on the possible glove box code?  Didn't think any SB trucks came with a th400, NICE score if so.  Or at least someone did a nice upgrade.  Have fun with the truck.

Offline Poorhouse

  • Newbie
  • Posts: 8
  • Newbie
Re: Hello From NW Montana - 79 K20
« Reply #12 on: May 31, 2013, 02:24:35 pm »
The glove box data sheet lists MX1 Automatic Transmission, which could be either.

The previous owner highlighted all the specs specific to the truck in the owners manual and has TH400 highlighted.

This site states 77 and later K20's used TH400's.

http://www.chuckschevytruckpages.com/73-87specs.html

I'll take a look this weekend and verify.
79 K20 Scottsdale 400ci TH400

Offline 74k20

  • Registered Users
  • *
  • Posts: 145
Re: Hello From NW Montana - 79 K20
« Reply #13 on: May 31, 2013, 02:47:51 pm »
NICE :)  I bought a '77 k10 for parts as donor truck for my 74 k20.  It was a sb400 (which is what I wanted), and owner told me it had a th400 (which it didn't).  This is why I asked.
« Last Edit: May 31, 2013, 03:01:06 pm by 74k20 »

Offline Poorhouse

  • Newbie
  • Posts: 8
  • Newbie
Re: Hello From NW Montana - 79 K20
« Reply #14 on: May 31, 2013, 05:03:24 pm »
You got me curious - Took a look and it is a TH400. 

Based on the above info and what I know about the truck I'm saying it was factory installed.
79 K20 Scottsdale 400ci TH400