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Rusty Nuts

Junior Member
Joined
Mar 15, 2025
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Location
B.C.Canada
First Name
Keith
Truck Year
1980
Truck Model
1500 Sierra
Engine Size
350
Hello all! I recently started a project getting a '80? GMC Sierra 1500 back on the road. So far the only things I'm still having issues with is a front brake sticking on, and no headlights... Lol, so I'm sure I will have some questions to post in the next week or so...

I've gotten some ideas as to where to look next from reading older posts so that's awesome! Appreciate the forum and this great pool of wisdom!
 

legopnuematic

Licensed Junk Dealer
Supporting Member
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Oct 27, 2016
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Location
MO
First Name
Spencer
Truck Year
1971, 1̶9̶7̶4, 1976, 1979,1̶9̶8̶5, 2002
Truck Model
Dart Swinger, Sierra 10, C10 Cheyenne, C10 Big Ten, Silverado 10, Ram 2500
Engine Size
225/6, 350 c.i., 350 c.i., 5.9l Cummins
Welcome from Missouri.
 

animal

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Location
Georgia
First Name
Lee
Truck Year
1986
Truck Model
c10 silverado
Engine Size
350ish
:welcome:
 

Strick

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Location
Dunn, NC
First Name
Harold
Truck Year
1979
Truck Model
C20 Crew
Engine Size
350
Welcome from the Tarheel State. Look for a collapsed brake hose on the sticky brakes & kick the dimmer switch a few times to wake the headlamps.

HS
 

ali_c20

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Location
Austria
First Name
Alexander
Truck Year
1974, 1979
Truck Model
C20, K5
Engine Size
350, 350
Welcome from Austria.
 

Rusty Nuts

Junior Member
Joined
Mar 15, 2025
Posts
2
Reaction score
3
Location
B.C.Canada
First Name
Keith
Truck Year
1980
Truck Model
1500 Sierra
Engine Size
350
Thanks for the warm welcome everyone! The headlight problem dose seem to be the dimmer switch, seems like the easy thing to do is put in a floor switch as it's pretty tough to get at the one on the column...
The brakes seem to be a bit more work to deal with, old flare nuts stuck to the line here, damaged shoulders on nuts there... You know the drill I'm sure... Lol. If I can't get 'er figured soon I will make a post with a more complete breakdown of the issue.
 

Mr Clean

Super Moderator
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Super Moderator
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Aug 18, 2010
Posts
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11,501
Location
North East Texas
First Name
Shawn
Truck Year
1982 & 1985
Truck Model
K10 Extra Cab w/ Proper SWB, & 85 K5 Blazer
Engine Size
454 BBC, & 383 Stroker
:welcome:
 

75 Chevy SWB 4x4

Supporting Member
Supporting Member
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Mar 10, 2025
Posts
66
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Location
NE Oregon
First Name
Doug
Truck Year
1975
Truck Model
K10 4x4
Engine Size
350
Welcome from NE Oregon!

Actually, the dimmer switch on the steering column isn't that hard to fix. Of course, I've only had Chevy steering columns apart umpteen times over the years to tighten up the tilt or to replace certain parts in them. Just look at the dimmer switch lever and see if it's contacting and moving the linkage that touches the rod, and that the rod is actually in the dimmer switch halfway down the column.
 

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