Author Topic: 1980 K20 4x4  (Read 22472 times)

Offline 1980K20

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Re: 1980 K20 4x4
« Reply #180 on: July 21, 2022, 12:11:43 AM »
Interior is almost 100%.  For some reason I only zip tied half the ac hoses and they popped off.  Got the door rain rails on and the trim around back off t the cab on.  Alright, Iím the dry now.

Drivers side vent window is horrible, But the Drivers side window sticks out, doesnít line up with the guide.  I put three washers on the bottom two bolts to help it. Will try the upper bolts this weekend.  The guide is all loose.

Anyways, anybody have this type of trouble?



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1952 International L112 - waiting for EV conversion
1967 Camaro - 250 six cyl, 200-4R
1980 K20 4x4 Fleetside - 350 SBC roller Cam, TH350

Offline Shifty

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Re: 1980 K20 4x4
« Reply #181 on: July 21, 2022, 09:14:44 AM »
I'm still fighting my wing vents, I feel your pain.
87 V20 Standard Cab Longbed (current)

87 R30 3+3 Longbed (days of yore)

98 C2500 ext cab longbed

Offline 1980K20

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Re: 1980 K20 4x4
« Reply #182 on: July 22, 2022, 12:53:23 AM »
Hear yea Shifty, no wonder these vents are a thing of the past.

I saw online the other day that passenger vent window assembly was no longer back ordered, but not the drivers side.  Both are back ordered again.


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--------------------------------------
1952 International L112 - waiting for EV conversion
1967 Camaro - 250 six cyl, 200-4R
1980 K20 4x4 Fleetside - 350 SBC roller Cam, TH350

Offline 1980K20

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Re: 1980 K20 4x4
« Reply #183 on: July 27, 2022, 12:57:07 AM »
Shims on three washers on the window crank helped get the alignment better.  The crank is super loose and floppy. Iíll probably put the original back in since I have new rollers to fix it.  The original is really stiff.  I replaced it because it was slipping gears, but cleaning it up it seems to work fine now.

The extra issue is the door trim.  The drivers side measures from the window to the inside edge 1/4Ē further than the passenger side. Passenger side fits nice and snug against the door. Drivers side sticks out 1/4Ē.  I had pushed it in, discovered that the extra pressure puts the window out of alignment.  Iíve got it sticking back out again and window works okay now.  Sigh, maybe I should have sprung for the expensive trim.  Oh well Iíll fix it eventually, good enough for now!


Sent from my iPhone using Tapatalk
--------------------------------------
1952 International L112 - waiting for EV conversion
1967 Camaro - 250 six cyl, 200-4R
1980 K20 4x4 Fleetside - 350 SBC roller Cam, TH350

Offline 1980K20

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Re: 1980 K20 4x4
« Reply #184 on: October 24, 2022, 09:54:07 AM »
Replacing the leaf springs to bring her back to stock height. Bilstein shocks, they seem like they should be longer, but thatís stock size for the truck apparently.

Drivers side done, passenger side remaining. Happy with the new height so far.

Discovered passenger front shock, Rough Country, was bad.  Iím sure that has something to do with the poor handling.  Geez, only 700 milesÖ


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1952 International L112 - waiting for EV conversion
1967 Camaro - 250 six cyl, 200-4R
1980 K20 4x4 Fleetside - 350 SBC roller Cam, TH350

Offline Geezer77GMC

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Re: 1980 K20 4x4
« Reply #185 on: October 24, 2022, 04:09:29 PM »
About 25 years ago I noticed the new rear shocks that were supposed to fit my 77 were too short for what I need. The Geezer came with 9 leafs in the rear, 5 in the front. When I drove over a hump in the road the rear shocks limited upward suspension travel causing the rear to lift off the road, very rough ride when empty. I rotated the rear shock mounts on the axle for 2-3 more inch travel upward. The ride is still very stiff when unloaded, but doesn't beat you nearly as much going over humps in the road. It also handles much better with the rear tires on the pavement.

Offline 1980K20

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Re: 1980 K20 4x4
« Reply #186 on: November 04, 2022, 11:31:11 PM »
About 25 years ago I noticed the new rear shocks that were supposed to fit my 77 were too short for what I need. The Geezer came with 9 leafs in the rear, 5 in the front. When I drove over a hump in the road the rear shocks limited upward suspension travel causing the rear to lift off the road, very rough ride when empty. I rotated the rear shock mounts on the axle for 2-3 more inch travel upward. The ride is still very stiff when unloaded, but doesn't beat you nearly as much going over humps in the road. It also handles much better with the rear tires on the pavement.
So far so good. I think the drive train vibration that happened at highway speed is gone with the stock lift also. It drives really nice now.

Transmission shop removed the temperature bypass valve in front of the front cooler that I had put in and cleaned up the hoses big time. The TH350 doesnít need it.

About two hours work away from moving onto more cleanup stuff. Not really much left, woohoo!


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--------------------------------------
1952 International L112 - waiting for EV conversion
1967 Camaro - 250 six cyl, 200-4R
1980 K20 4x4 Fleetside - 350 SBC roller Cam, TH350

Online JohnnyPopper

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Re: 1980 K20 4x4
« Reply #187 on: November 05, 2022, 10:03:03 PM »
Nice to see a project come in to the space where the owner envisioned... 8)

Just found out that my K10 Short bed step side was fitted for a camper spring option from the factory.  ;) ;) ;)

Wonder if that contributes to the 'stiff' ride...? 

There is pry a spec sheet on how many leaf springs should be there... :)
1957 Apache 3100 235 Inline 6, 3 on the tree
1973 C-20, 3+3 454 4BBL TH400  Water Injection
1978 K-10, 350 4BBL TH350 NP203 M.M. Part time Kit/Hubs
1980 C-10 under construction